Why Every Diet I Ever Tried Fell Apart (and What Finally Worked)
By Ami · 16 June 2026 · 6 min read

When a diet falls apart, you assume you failed it. I want to suggest the opposite. Most diets are built to fail. Here are the five mistakes I made on repeat, and what I do now instead.
Let me reframe something that has probably been quietly eating away at your confidence for years. When a diet falls apart, you assume you failed it. I want to suggest the opposite is closer to the truth. Most diets are built to fail. Not on purpose, but by their very design. And once you see how the design works, you stop blaming yourself and you start choosing differently.
Think about the pattern. You go all in. You shrink the portions, you cut out whole categories of food, you white-knuckle through the hunger. For a little while it works, because anything works for a little while. Then real life shows up. A stressful week, a birthday, a rubbish night's sleep. The rules crack, you "fall off," and you promise to start again Monday. Round and round.
That is not a you problem. That is a design problem.
Diets run on willpower, and willpower runs out
Here is the core flaw. Most diets are powered by willpower, and willpower is a tank, not a well. It drains through a hard day, and it is nearly empty by exactly the moment the cravings hit hardest, the evening, when you are tired and the kids are finally in bed. So you end up trying to be your most disciplined precisely when you have the least discipline left. It is an impossible setup, and then it convinces you that you are weak.
You were never weak. The plan was built on the one fuel that always runs out.
The five mistakes I made for years
I have been vegan my whole life, and I still spent years overweight and exhausted, because being vegan is not the same as knowing how to eat. These were my mistakes, on repeat.
The first was eating less to lose. Tiny portions, big hunger, guaranteed collapse by Friday.
The second was fearing the wrong foods. I was scared of potatoes and rice and bananas, while I cooked everything in oil without a second thought. Oil is about 4,000 calories a pound and gives you no fullness at all. I had it completely backwards.
The third was chasing speed. Whatever promised the fastest result, I tried. Raw diets, juice things, very low calorie nonsense. Every one left me hungrier than when I started.
The fourth was all-or-nothing thinking. One imperfect meal meant the week was ruined, so I may as well write it off and restart Monday.
And the fifth was waiting for motivation. I watched people eat this way on YouTube for ten years before I did it myself, because I was waiting to feel ready.
What I do instead
The fix for every one of those is the same direction: build a way of eating that does not need you to be perfect or superhuman.
Fill big plates with the water-rich, fibre-rich plants so you are not hungry and not relying on willpower. Stop fearing whole carbs and start watching the oil. Choose the approach you could happily still be doing in a year, not the one that promises the quickest result. Let consistency, not perfection, be the goal, because the average over months is what shapes your body, not any single day. And start now, not when you feel like it.
When I gained weight back
I want to be honest, because I think it helps. A couple of years ago I let my habits slide over about six months and put twenty pounds back on. Dates here and there, finishing the kids' leftovers, a lick of peanut butter, more oil-free "treats" than I needed. Nothing dramatic. Just drift.
The old me would have panicked, restricted hard, and set up the next collapse. The new me made a video about it, went back to the basics that had already worked, cleared out the kitchen, and got on with it. No punishment. No Monday. Just the next meal. And it came off again, because the system works when you work the system.
Weight goes up and down. That is life, not failure. What matters is that you have a way of eating you can come back to, rather than a diet you have to start.
Watch: I talked through the whole thing, what slid and what I did about it, in I gained weight and here is what I am going to do about it. If you have started over more times than you can count, watch this before you start over again.
You do not need more discipline, lovely, I promise. You need a way of eating that works with your real life. That is the whole game.
Started over more Mondays than you can count?
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Quick answers
Why do most diets fail?
Because they run on willpower and restriction, and both run out. When real life turns up, the rules crack, you blame yourself, and you start again on Monday. The design is the problem, not you.
How do I lose weight without dieting?
Build a way of eating you can live with. Big plates of whole plant foods, oil out of the pan, a handful of meals you love on repeat. It should not need willpower to get through a Tuesday.
What should I do if I regain weight?
Nothing dramatic. No punishment, no fast. Go back to the basics that worked, clean up your kitchen, and start with the next meal. Weight goes up and down. It is not a verdict.
Topics
- why diets fail
- why do diets not work
- sustainable weight loss
- diet cycle
- yo-yo dieting
- willpower weight loss
- monday restart diet
- plant based lifestyle not diet
- weight loss mistakes
- how to lose weight and keep it off
- Broccoli Mum
Ami x 🥦
Broccoli Mum