A.P.
Oh, sweetie!! I so feel your pain I had a daughter very close to the same. I actually did have 2 other options. One was either send her to her dad's to live which I did not feel was a good option or put her in a program that dealt with troubled youth. Her dad would not allow me to send her into to the program so she moved in with him. She lived there for a year and came back much more grateful for a brief period of time and them went back to her old ways. Finally at age 18 only months after her birthday I had to kick her out of the house. She is now almost 21 and has learned a lot being out in the real world and our relationship has taken a complete 180. I say all this to say that the things that kept me going were this: people reminding me to just stay in the game, don't check out, continue to love them with healthy boundaries, have at least one or two people who you can contact at any time to help you react properly give wisom and support and (I don't know how you feel about this but for me it was a lifeline) and that was pray, pray & pray some more. God has been extremely faithful!! So I just will say you can only do so much and then you have to let them be their own worst enemy. If you want more info on the programs available I could provide that to you. I have several connections in the social severices field.
Much Blessings!!