Either change your figure, or change your mentality, how to change. Your answer is very comprehensive, so I won't go into details.

I don't hate fat people, but I don't like crying all day about being fat and feeling inferior. The person I like doesn't like me, and the person who doesn't lose weight as a result is really not difficult to lose weight, just bitter. If you can endure this pain, you can become a slim and beautiful girl. If you can't do it, let go of yourself and be a happy and lovely little fat girl.