We went through some of that with my beloved's youngest daughter...right after I married her mom. She was a terror and I often feared for our safety. She began cutting and running away, too. We stepped in, big time - had her put into to a Residential Treatment Center and they worked with her for about a month. Expensive, yes...but it helped. I don't know that your situation would warrant such intervention...there are so many variables and no two families are the same.

Fast-forward to today: The 'girl' is now a nearly 28-yr-old sweet young lady that has born one of our granddaughters. She is very close to her mom, now, and even she and I get along extremely well.