Budd budd. Relax. First of all i know what you have been going through and i know that it sucks. I have a nonbinary friend and thus i know how it feels. Look here, try to talk to your mom that she has to stop taking it as a joke because it is a serious matter.
And look what you can do about this. There are binders and surgery and all those things are as an option there. But please don’t starve yourself.
Find solutions about this which doesn’t hurt you. I’m sorry if i said anything wrong.
Just know that I’m here for yaa
Im sorry I have been struggling with a similar issue but together we can support each other😀