silver queen,

I think what you actually NEED at the moment is SUPPORT! (which should come from your family- but does'nt sound like it does at all)

You have been through some REAL stress lately, and to be told that you are "STUPID" is frankly disgusting!

I really do feel for you.

In my opinion, I think it would be a good idea for you to move out, so that you are not subjected to any more verbal abuse. That would probably feel very scary to you now, but may put you on a happier road.
Or consider moving in with a relative you can trust, or a friend.

My heart goes out to you.

Big hug ((((((((((silver queen )))))))))))))))