I'm really sorry you are having a hard time of it with your mum,I had a hard time with my mum from a very young age and now we hardly talk.Is there nobody else in your family that you can go to for support?Maybe you should try talking to your mum about your sleep pattern because it obviously needs addressing and it could be a case of just trying to adjust it.

I really hope things get better soon,I would hate it if you ended up like me and my mum.