Help...

I have a question for all of you. Its not dealing with anything of fertility or health body problems. More like a problem at home. Um I get treated pretty bad at home, get hit, verbally abuse. Can't take it no more, my parents are strict with me. They have also warned me that if I dont like it that I could leave and I just turned 18 a month ago, still in high school, last year, and 2 years ago I got tire and got help from cps but now since I'm 18 I have no help. Don't have friends to rely on, or even a job to start saving to be on my own. Is there any help after 18? I get hit but mostly the verbal is worse , brings me down depressed thinking dumb stuff, asking myself what's my purpose here because if it's going to continue like this then what's the point of being alive ..... Help.