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How to Break Bad Habits: A Complete Guide to Creating Lasting Positive Change
- Dr Laura Allen
- Aug 7
- 12 min read
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Have you ever promised yourself that you'd stop procrastinating, eat healthier, spend less time scrolling or quit smoking – only to find yourself slipping back into old routines?
You're not alone. According to a Forbes article, between 80% and 92% of all New Year’s resolutions, which are commitments to replace bad habits with healthy ones, fail.
What people inevitably find is that breaking a habit isn't simply a matter of motivation or willpower. Over time, habits become ‘hard wired’ into our brains through repetition, making them feel automatic.
But the encouraging news is that just as habits are learned, they can also be changed.
Whether you're looking to break a bad habit or replace it with a healthier one, this guide explains exactly how habits work and provides practical, evidence-based strategies to help you make lasting changes.
Why do habits form?
Habits exist because your brain is designed to conserve energy. When you repeat an action often enough, your brain creates a shortcut (sometimes referred to as ‘heuristics’) so that behaviour becomes automatic.
In the book The Power of Habit, investigative reporter, Charles Duhigg, explains the ‘Habit Loop’ – the three-stage process of habit formation. The loop generally follows this format:
Cue – the trigger that starts the behaviour.
Routine – the action itself.
Reward – the positive feeling or benefit your brain receives.
For example
Cue: Feeling stressed after work.
Routine: Eating chocolate.
Reward: Temporary comfort and relaxation.
Once this loop is repeated enough times, your brain begins craving the reward whenever the cue appears.
Understanding this process is one of the most effective ways to break a habit successfully. The reason? Because by exposing the circuitry of the loop, you can rewire and thus reprogram the cycle.
Using the example above, if you discover that your undesirable habit is triggered by work stress (cue), you may have the ability to make work less stressful or at least moderate how you respond to those stressors.
But let’s say that there is nothing you can do to make work less stressful, you still have the option of modifying how you respond to it (routine). In place of eating chocolate, you could ensure to have a healthy snack to hand – such as piece of fruit or whole nuts.
In short, awareness of your habit loops provides powerful insights and opportunities to make positive changes.
Why it’s so difficult to break bad habits
Many unwanted habits offer immediate rewards while the consequences are delayed. Examples include:
Scrolling social media provides instant entertainment at the cost of getting things done – there is also a link between social media use and poor mental health.
Smoking offers temporary stress relief but impairs lung, heart and vascular function while also significantly increasing disease risk factor.
Junk food delivers immediate satisfaction but leads to excess weight gain and, as Dr Chris van Tulleken reveals in his important book, Ultra-Processed People, puts us at risk of developing a veritable panoply of diseases.
Procrastination briefly reduces anxiety yet adversely impairs our productively levels.
As Daniel Kahneman showed in his book, Thinking, Fast and Slow, your brain naturally favours immediate rewards, even when they conflict with long-term goals. In economics parlance, this is called ‘time discounting’ – where we discount the future costs of our present actions.
The key isn't simply resisting temptation (willpower) – it's replacing the reward with a healthier alternative.
How to break bad habits
This guide will show you how to break bad habits and replace them with healthier, more productive ones. Along the way, you'll see practical techniques applied to common habits, making it easier to understand how they work in real-life situations.
As you move through the guide, you're encouraged to put these techniques into practice straight away. Applying what you learn while it's still fresh in your mind will help you get the most from the material, rather than waiting until you've finished reading and trying to recall it later.
1. Identify what triggers your habit
Before changing any behaviour, we must first understand what causes it.
Ask yourself
What time does it happen?
Where am I when it starts?
Who am I with?
What emotion am I feeling?
What happened immediately beforehand?
Keeping a simple habit tracking calendar for a week often reveals surprising patterns.
Many people discover they aren't hungry when they snack – they're tired, bored or stressed.
2. Replace the habit instead of removing it
One of the key messages in The Power of Habit is that behaviour abhors a vacuum. And that no habit can be removed without being replaced. Think about it. If a person removed the bad habit of scrolling for an hour each morning, would they then just sit robot-like staring blanky into space? Nope! That time would quickly be filled by something else.
The trick here is to try and fill that behaviour void with a healthy habit. So, ask yourself:
“What need is this habit meeting?”
Examples include
Old Habit | Better Replacement |
Smoking | Chewing gum or taking a short walk |
Emotional eating | Drinking water or calling a friend |
Social media scrolling | Reading for 10 minutes |
Nail biting | Holding a stress ball |
Late-night snacking | Herbal tea or fruit |
Replacing the routine while keeping a similar reward makes change much easier.
3. Make your environment work for you
Willpower is limited. It’s analogous to high-octane fuel – it delivers a burst of energy but runs out quickly. Of course, this is not enough to sustain desirable habits over the long-term.
Instead of relying on willpower (which is not only fleeting but also unreliable), B.J Fogg, author of Tiny Habits, recommends that we ‘engineer a favourable environment.’ Remember, your environment influences your behaviour far more than willpower.
In the example above, that person scrolling for an hour each morning isn’t relying on willpower. Their environment is engineered to enable this behaviour: they likely have no morning routine, their mobile phone is probably right by their bed, the habit has been well-drilled.
In the following table, you will find simple environmental changes to combat common undesirable habits.
Undesirable habits | Environment changes |
Unhealthy eating | Remove unhealthy snacks from your home and replace them with healthy foods. |
Phone scrolling | Keep your phone in another room while working. |
Late to work | Lay out clothes the night before and implement a structured morning routine. |
Procrastinating | Remove distractions from workspace and create a to-do list. |
Lack of physical activity | Set a 20 minute timer to alert you to get up and move and include a 30 minute walk into either the start or end of your day. |
Making bad habits inconvenient and good habits easy significantly increases success.
"Environment is the invisible hand that shapes human behavior" (Atomic Habits).
4. Start smaller and simpler than you think
A pro tip form Tiny Habits is to make a habit so small and simple that it’s almost impossible not to do. The most common mistake people make when implementing a new habit is to start big. They try to change everything overnight.
Instead of saying
"I'll exercise for an hour every day."
Start with
"I'll walk for ten minutes after dinner."
In fact, B.J Fogg would tell us to go smaller still. He might suggest starting with simply putting on your gym clothes each day. After doing this for a week, we might consider performing a single press-up or star jump.
The point is, small changes are easier to repeat, and repetition creates habits.
Consistency always beats intensity.
5. Know your 'Why'
We’ve all heard an inspiring story of the person who made a miraculously transformation. Every domain of life has its very own success story: from junk food addict to plant-based prodigy; from couch potato to gym god; from weekend boozer to tee-total saint. The question such stories beg is ‘How did they do it?’
The answer for many of these cases is that they found their why. Simon Sinek, in his book, Start With Why, argues that having a value-based reason to something is one of the most powerful ways to motivate human behaviour. I have an anecdote that substantiates this claim.
I once worked with a man who was overweight, chronically unhealthy and consumed excessive amounts of alcohol. No amount of rationalising or scientific stats improved his behaviour. He would try a new strategy for a day or two before reverting to his old ways. This went on for years.
That was until he was playing kick-about with his five-year-old son and had to stop because of severe heart palpitations. As he dropped to his knees while clutching his chest, he believed he was having a heart attack. Understandably, this made his son very upset. The next day he completely changed his behaviour.
When explaining the reasons behind this dramatic change, he told me that he felt horribly guilty putting his son through that traumatic ordeal. Also, he wanted to be playing kick-about with his son for many years to come. He’d found his why. From then on, he was eager to learn how to adopt healthy lifestyle factors. And, as a consequence, our coaching sessions became so much more productive and effective.
But we don’t have to wait until such an extreme event before making positive lifestyle changes. You can start searching for your why today.
Long-term change requires meaningful motivation.
Ask yourself
Why do I want to stop this habit?
What will improve if I succeed?
What happens if nothing changes?
Write your answers somewhere visible. When you experience a difficult day, your reasons can help reinvigorate your motivation.
6. Track your progress
Peter F. Drucker, a pioneer in management theory and author of over 90 books, famously wrote, ‘what gets measured gets managed.’ Subsequent studies investigating why some people are more effective at achieving their goals than others report ‘progress tracking’ as a ‘consistent commonality.’
But none of this should come as a surprise. After all, it’s common knowledge that monitoring progress provides us with feedback on the efficacy of an intervention. If the feedback is positive, we continue to implement the intervention. If negative, then we identify what is underperforming and make modifications.
Consider applying one of the tracking techniques to a habit you wish to break.
Try using
Habit-tracking apps
Printable trackers
A notebook
Don't just track perfection. Track consistency.
Remember, missing one day isn't failure – it only becomes a problem if one missed day becomes a week.
7. Reward positive behaviour
The human brain responds well to rewards. That’s why B.J Fogg made positive reinforcement a permeant fixture of his Tiny Habits method. He advises that we never neglect celebrating small wins.
To be clear, Fogg isn’t advocating that we treat ourselves to an à la carte meal or Swiss watch each time we maintain a seven-day streak on Duolingo. Instead, he recommends that we treat ourselves to a small reward after reaching a prespecified milestone or goal.
One of Fogg’s examples involves simply patting himself on the back each time he completes a small task – such as crossing off a to-do from his jobs list.
Healthy behaviour-reinforcing celebrations may include
Buying a book (as reward for writing this blog, which took one to two hours a night across a week, I purchased a second-hand copy of The Undoing Project)
Watching a single episode of that series you’ve just started
Enjoying a relaxing bath
Saving money towards something meaningful
Celebrating progress reinforces positive habits.
8. Expect setbacks
Relapse is a fundamental and unavoidable part of behaviour change. In her book Right Kind of Wrong, Amy Edmondson reminds the reader that the road to success is paved with a series of failures. In fact, she goes so far as to say failing is beneficial because it is instructive and helps to forge resilience.
However, by way of caveat, Edmondson observes that this linear outcome – fail → succeed → fail → succeed – is not guaranteed.
In her extensive research, Edmondson discovered that those who were more likely to succeed after suffering a failure exhibited certain qualities. Chief among these qualities were the willingness to learn from the failure, recognition that failing isn’t a reflection of self-worth and prior acceptance that failure is inevitable.
It transpires that coming to terms with this unpalatable fact prepares us for when – not ‘if’ but ‘when’ – it happens. Here are some cognitive reframes that can help when failure comes knocking.
Instead of thinking
"I've ruined everything."
Ask
"What caused today's setback?"
Instead of saying
“I’m a failure”’
Say
“This is part of the process, and it shows that I am trying.”
Instead of believing
“I’m no good.”
State
“Failing is not a reflection of my character – what I do next is.”
Every setback provides useful information. Learn from it and continue the process.
9. Build new daily routines
People who succeed at sustaining positive habits don't rely on motivation (or willpower for that matter). Even more heretical, according to some behaviour change specialists, self-discipline is overrated. You might be thinking, but aren’t these qualities the foundation on which all healthy habits are built?
That’s an understandable question considering we are taught to believe this from a young age. Put your hands up if a parent or teacher ever said that your shortcomings were a consequence of a lack of motivation, or willpower, or self-discipline. Just as I thought.
But the truth is, achieving goals is more a matter of implementing the right routines, structures and systems. Let’s say you want to improve your aerobic fitness (because you discovered the incredible health benefits of exercise), so you decide to complete a daily three-mile run.
How long are you realistically going to keep this up while relying solely on motivation? Probably a couple of days. Perhaps a week if the weather’s good.
Now consider the prospects of success after routinising or systematising a series of simple, structured steps. Instead of going on your three-mile run when you’re feeling motivated, you follow this routine:
6:00 am > Alarm goes off
6:01 am > Wake up and out of bed
6:05 am > Get running kit on
6:10 am > Begin mobility movements
6:15 am > Start walking
6:20 am > Break into a slow jog
Also, you’re smart so you don’t start off with three miles. Over a period of a month, you incrementally increase the distance. This not only prepares your physicality for the demands of exercise, but it also enables you to adjust your routine so that it is tightly tailored to your personality and current life commitments.
Below is an example of a healthy daily routine (a series of good habits).
Morning
Drink a glass of water
Engage in 30 minutes of exercise or physical activity
Eat a healthy breakfast
Prepare a healthy lunch
Afternoon
Walk for 20 minutes during lunch break
Eat preprepared lunch
Evening
Engage in 30 minutes of exercise (if unable to exercise in the morning)
Read before bed
Prioritise preparing tomorrow's meals
Eventually, these behaviours become automatic routines that require little to no motivation, willpower or self-discipline to do.
10. Get support
As I’ve endeavoured to make clear throughout many of my articles, there is absolutely no shame in seeking support.
Whatever it may be for – a therapist for mental health challenges, a coach for career and lifestyle changes, a personal trainer for enhancing physical fitness, or a nutritionist for improving diet and overall health – a trained professional can significantly increase your prospects of success.
In the context of the pursuit of personal development, advocacy for seeking support has been advanced by many of the great sages of antiquity. In the masterwork, Letters From a Stoic, written some 2000 years ago, Seneca advised his friend Lucilius to seek out a ‘helping hand’ when undertaking life’s challenges.
Contemporary thinkers, such as Robert Greene, in his excellent book, Mastery, and Shane Parish, author of Thinking Clearly, also emphasise the incalculable value of support networks. To strengthen their arguments, both Greene and Parish disclose anecdotal examples of how support from others enabled them to achieve their biggest goals.
The long and short of this final step can be stated simply thus: You're far more likely to succeed when someone knows your goal.
Support could come from
Friends
Family
Online communities
Accountability partners
Healthcare professionals
Accountability dramatically improves consistency.
Common habits people want to break
Some of the most searched habits include:
Smoking
Vaping
Nail biting
Overeating
Sugar cravings
Doomscrolling
Negative self-talk
Sleeping late
Although each habit is different, the process of changing them is remarkably similar.
How to break bad habits FAQ
What is the fastest way to break a habit?
The quickest way is to identify the trigger, replace the unwanted behaviour with a healthier alternative and make the old habit more difficult to perform. Also, ensure you reward yourself for every time you action your new healthy habit.
Can willpower alone break a habit?
Willpower helps initially, but lasting change usually comes from changing your environment, routines and daily behaviours.
How long does it take to break a habit?
The popular belief that habits take 21 days to change is a myth.
Research suggests the time required varies widely depending on the individual, the behaviour and how consistently the new routine is practised.
For many people, creating a lasting habit can take several weeks or even months. The important point is not how quickly you change – but how consistently you practise the new behaviour.
What should I do after a setback?
Get back up. Dust yourself off. Start again.
Remember Amy Edmondson’s advice to treat setbacks as learning opportunities. Identify what triggered the behaviour, adjust your strategy and continue without dwelling on the mistake.
Final thoughts
Learning how to break bad habits isn't about becoming more disciplined – it's about becoming more intentional and thoughtful regarding the routines that you implement.
By understanding your triggers, replacing unhealthy behaviours, improving your environment and staying consistent, you give yourself the best chance of creating lasting change. And if you find that this process isn’t working, consider seeking support from a trained professional.
But remember, every positive decision strengthens new neural pathways. Progress isn't measured by perfection but by persistence.
Small actions repeated consistently lead to remarkable results over time.
About Dr Laura Allen –
A Chartered Psychologist & Integrative Therapist, Dr Allen specialises in a broad range of therapeutic methods. She is a published author of numerous research papers and Interactive Courses in the field of Psychology. Dr Allen works one-to-one with clients and supervises other practitioners. She is also a proud member of the British Psychological Society assessment team supporting psychologists in training.
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