I felt the same way, and still do to some extent as far as running away. I'm glad that you have your mom to talk to, but think about the effects that will happen if you run away.

Will it make things better?
Will it make things at home worse?
What consequences would you possibly have to endure?

Hang in there... my dad is similar (of course I don't know details, but I have similar thoughts and feelings towards mine as yours). Don't beat yourself up when you cut either. Know that its okay to make mistakes, but learn from them. We're here for you, and keep your chin up. Things will get better