My moms abusive and I don't know who my dad is I'm only 13 so I don't know what to do please help?

At the age of thirteen, abuse means something totally different than it does when you're older, if it's real abuse then you call someone about it, call the police, tell a teacher, any adult really! And as for your dad, unfortunately that's a fairly common thing and there's not much you can do about it. Get help buddy.