I don't like making this public knowledge but I'm one of those kids. Kicked out of home by dad when I was 15, after running out of friends' houses to stay at I dropped out of school and ended up on the streets. Some serious drug addictions followed over the next 5 years until I finally beat (or overdosed?) all my inner demons and cleaned my life up again. But it took many attempts and many houses along the way, and you don't even want to know the things that went on on the streets that still haunt me today, but in the end I finally made it through and while not many do make it, with knowing there is good family who care that will be there for her in the end, she might make it through too. But you can't force it, it will only happen in her own time. Hopefully jail will be the shock to her system that she needs. Sorry I don't have an easier answer.