Maybe you should have a serious dialogue with any obese person to figure out why it is hard for them if you care about forming a model of the world that represents actual reality.
Most obese people are not happy with their body or the ways their eating habits impact their live in many ways. Most obese people are also happy when they eat or worse: they are unhappy when they don't eat.
If eating gives you a short term improvement even if it makes you unhappy in the long term then you might just do it, like in any other addiction (btw. a well researched topic).
The way out of this is not to "just eat less", the way out of this is to tackle the reason why you only can be happy when eating and then eat less.
Most obese people are not happy with their body or the ways their eating habits impact their live in many ways. Most obese people are also happy when they eat or worse: they are unhappy when they don't eat.
If eating gives you a short term improvement even if it makes you unhappy in the long term then you might just do it, like in any other addiction (btw. a well researched topic).
The way out of this is not to "just eat less", the way out of this is to tackle the reason why you only can be happy when eating and then eat less.