Hi, Grey Wolf!
I don't know if I have already asked you this question in the AvPD forum but, have you got the opportunity to see a doc by yourself?
The fact that relatives don't understand that you need help gets the hell out of me.

Another possibility could be talking with a school concellor and that (s)he talks to your mum.

I understand how you're feeling so I know there is nothing I can say that makes you feel better. Only that rest if you need it and then, when you have some strenght do something you enjoy and can make you go out this state.

A hug!