What worked for me was a LOT of tiny things. There was a post on HN where someone kept a journal of what they ate, how they slept and their weight. Turns out sleep was the most important factor in weight loss by far. This seems to be the case for me too. So, the most important things in my experience, not in order of importance because theyre all necessary:

* enough sleep, if you don't sleep enough you get extreme hunger pangs and all the other tricks will be useless.

* strength training every other day. it reduces your hunger by a lot and doesn't have to take long or very be intense at all, 2-3 sets of 5 pullups is enough for me and can be done in 10m or less.

* skip breakfast. this doesnt work for some people, so if it doesn't, just go to 4.

* eat small meals, you can feel satiated from 250-300kcal so have that every time you eat, max 550 kcal for dinner.

* count calories and make sure you eat around 500 kcal under your TDEE, calculate yours at tdeecalculator.net

* your weight fluctuates 2 kg in either direction constantly, only when it moves beyond that there's been a significant gain or loss.

* eat more protein, you feel full quicker

* drink as much of your 0 kcal soft drink as you want, it's 0 kcal and can get you through tough moments.

* have one or two cheat days every week and just eat whatever you want, i did this and kept losing weight throughout.

* have go-to instant or low effort meals with the right amount of kcal and preferably high protein ready at all times, you want to conserve as much will power as possible.

* be kind to yourself.

that is all.