My Parents Are Sick of Me, Is There a Way to Get Them Back or Is This It? Kinda Long but Please…?

i have been an awful child. i started using drugs at 12. they didn’t know until i got arrested at 15 1/2.
i got arrested for running away:( and i got put in the crazy house then on house arrest and probation.
i got arrested again for alcohol and tabacoo possesion…back on house arrest (i was also doing outpatient rehab but i was still using)
i got arrested again for unautherised use of a motor vechile and possession of weed.
(the car i was in was my dads state company car. my dad knew bad things going on at his work (he was the one on the news fighting with the ohio BWC) and this gave them something to use agenst him, cause i crashed the car (i was drunk))
so that time i went to jail, then onto house arrest then i went into rehab for four months. my parents gave custitdy to my dads parents and its going really bad and my parents live in ohio (and i have a little sister shes six and loves me and shes the most beautiful girl ever) and now i’m in texas…
and bads stuff went down today with my dads parents (i didnt use or break any rules, ive been off drugs for 5 and a half months)
and i called my dad (i had to sneak it because his parents wouldnt let me talk to him)and he said, “brittani, i am done. i have nothing to do with you.”
and then later i called my mom and i was crying and she knew i was crying and she was like, “i have other things to deal with, sorry, bye.”
:(
so, even after all those times they said they wouldn’t give up on me, they have.
and there not going to let me go home i dont think.
and my grandparents are just awful:(
what can i do?
dude i admitted i was an awful child i asked how to fix it.
i’ve said sorry and really i asked how to get them back i don’t need everybody telling me how much i suck.