It's incredible that even in this thread people blame the OP and say 'oh you clearly didn't learn how to eat healthily! it's on you!'. And I also saw someone say 'it reduces hunger and does some biochemical stuff'.
For some people, the 'biochemical stuff' is of the essence. They know full well how to eat healthily and work out. But even when they do, they will still maintain or gain their weight.
I've been dieting from the age of 14. Meticulously logging my food intake, working out daily, etc.Tried fasting, no UPF, starvation, shakes, keto, slimming world, weight watchers, and so on. I literally have about 10 years of food tracking history in MyFitnessPal, and used other tools before that. I was constantly the one turning down high-calorie foods and drinks. Could never fully enjoy a meal out, as I'd be having a small starter and a salad when everyone else was having what they wanted. With great effort I would maybe lose 1-2 kg. One bigger meal, and I would regain it all, and then some. Sometimes I'd be so dishearted that I would eat some high-calorie foods for a while, and gain 8-9 kg back in a fortnight. I know, and always knew, full wel how to 'eat healthily and work out regularly'. Yet still some of you will think 'well she clearly didn't track everything she ate, and probably cheated, otherwise she would have been skinny'.
Mounjaro fixed whatever was wrong, and I will gladly take it for life. I go longer between doses (reaching the 40 day limit). The cost for me is about £110/month. That's worth it, and I'm hopeful that cheaper alternatives will be brought to market soon.
In addition, I live an active life, rarely drink alcohol, focus on protein and fibre, and reduce UPF intake to 10% or less. But I'd have done that anyway. I still get hungry and can enjoy food, but this time when I go to a restaurant, I can join in normally.
If you can afford it, my advice would be to go back on MJ on a low maintenance dose, and take it from there. The problem is not you or your lack of willpower, it's your body's 'biochemical stuff'.