You wont get to the bottom of your issues with food and body image until you do some inner reflection and even see a counsellor.
I seen one and was able to trace my issues back to when my dad died when I was 6. Stressful time for a child, and I spent a lot more time eating for comfort, or mum was spoiling me with sweets and treats etc.
As I got older, I used food in a different way. I realised that I could also eat significantly less and lose a lot of weight. And so began an eating disorder. I had anorexia. At my lowest, I had a BMI of 15.
This also came at a time of stress, I had been assaulted by a boyfriend at the time (I was only 14!) and thought so lowly of myself and with the court case etc, it felt like the only thing I could control.
I got an underactive thyroid after having a baby and gained weight, and lost a load of weight through really restrictive eating again - due to stress of a pretty emotional break up.
I noticed I was putting on weight again recently (last 1-2 years) and this was down to feeling quite low and depressed, lots of past emotions coming back up and using food AND alcohol as a crutch. I again, had to look within myself, seek out some counselling again, and now eating healthily again.
We shouldn't need to "diet". When you address the emotional need behind stress eating etc, you will make better more informed choices around eating as you will adopt better coping strategies that do not involve food. Weight loss jabs dont address these, and neither does weight loss surgery. Which is why they aren't suitable long term options (e.g. rest of your life).