I have a problem,I cut,and I nees help.?

I`m finally going to own up and tell someone,u people on answers.I cut when I get depressed and I can`t stop the urge without having someone on the phone with me or there with me.My life is really screwed up.My mom`s a paranoid skitzofrenic,My dad just tells me to stop like it`s that easy,My boyfriend is a druggie with anger problems but then again i think he`s better now,I have one person I can talk to(my ex),and i have had the worst childhood of anyone i`ve ever even read about.On top of all this,My mom beats me when she`s not on her meds.I dont know what to do.I have so many scars on my arm and i`ve tried to snap rubber bands on my arm but it wont work anymore.I don`t know what to do,please help.