Like cant mentioned you have had a pretty shitty past but a bright future and I think that you will do well here. I know a little about johns and being sold but I'm lucky that my mother wasn't a druggy but I more or less had to leave at 12 years old.
I just want to say welcome to the best place on earth to get your head together and your past behind you. You seem to be young enough to want to succeed in recovery and have some peace in your life.
With a little effort, determination, luck and some magic you will do fine.
Peace, Rainbows, Love & Healing
Stick around, It will get better....