I don't know if what 16 year old me did will help you, but I solved my overweight with bulimia - forcefully throwing up after eating a chunk of food. I figured that I didn't care if my stomach was filled or not, I just wanted to eat. Once I ate, it didn't matter if my stomach was empty. If it was empty, I could just drink water and be fine for another couple of hours. So I would throw up all the food I ate on purpose, then drink water. Repeat this for 3 times a day, and you're going to sleep with only water.

The upside, I lost weight very, very quickly. The downside, I'm 21 years old, skinny, but still do it. It's like an unhealthy addiction, and it's a disorder that I don't know how to get rid of.