My parents are meth heads, what should I do with my life?

My parent have been taking crystal meth for over 12 years now. over the years there addiction has gotten worse. when i was 6 i went to foster care, i was neglected and abused by my foster mom after 3 monthes of foster care cps decided to give me back to my parents. when I was 8 my mom stoped making me lunch for school and buying me clothes, when I was 10 my dad stoped going to work and my parents took me out of school, because the teachers keepts calling child support in me because I showed up with dirty clothes and no lunch everyday. At that point it started getting really bad, they’d only spent money on meth. We eventually got kicked out of our apartment and moved in a trailer with a drug dealer. The drug dealer has alot of junkies coming in and out of the trailer, they usually crash on the couch do some dope and leave. I have to sleep on a small chair that hurts my back. I have been molested a few times by the junkies. I am 14 now I usually stay at my friends house and sometimes sleep on tree to avoid going “home” I could barely call that trailer home I do not feel safe there. I work for someone who gives me weed, dabs and pills which I sell I dont like selling drugs but I need the money for food and clothes, I can not get a job because I dont have a social security number or birth certificate. I do not do any drugs I tried a few (meth, herion etc) I only tried em once and I do not like them. I dont wanna go back to foster care for many reason, I still have a fear from when I was 6 about cps. Cps treat kids like objects they do not make it about us kids, they only make it about the money, I’d rather be homeless than go there. my parents are nothing to me now, I had hope for them thinking one day they will change even though they had no intention too, but that one time when I was 10 they ran out of dope my dad was so out there, he ask if I felt pain I said no, then he started punching me in the face saying “do you feel pain now” I tried to run but I grabed me my mom had just watch even when I begged her for help, after he was done my face was all bruised and I had a bloody nose. more phyco events used to happen but since I only go to that trailer every few week and usually hide from my parents the few time I do, so there usually avoided. Im an uneducated 14 year old girl that wants a new life a good future and happiness. I always day dream about how when I turn 18 I will get a security number get a job and be happy, is there anyway I could change my life?