I don’t know anything about your personal life but you know what? You are a boy! (I hope I interpreted your comment right?) your body just got a bit confused before you were born. You are and always will be male. And if your friends don’t respect that then they probably aren’t worth your time right now. I never usually comment stuff like this on the internet but this is important, so OP, I want you to know that you are a super cool boy!

I have a similar body to yours. Big ass waist and chest. I still look down disgusted at myself for it. But it doesn't matter what you look like. It only matters what you think. Now people can be assholes and not want to accept it but just ignore them. You have plenty of friends that support you. I know its hard for you because your mom doesn't support you. It hard on me because the most important people in my family refuse to call me Charles and he/him. Its going to be hard. But use the support you already have from people to make yourself stronger. In my eyes your not a girl. Your a handsome young man that many people love. Your boyfriend sees you as a man. I see you as a man. Pretty much everyone on here sees you as a man. Because you are a young man. Don't let anyone else tell you otherwise

Ilynh son

Maybe you can try to convince her that you just want to be yourself.

I feel so bad for you right now... But you shouldn't hate yourself. It only hurts you more. Just know that I support you.