My daughter has ran away twice. The last time she ran, the ex and me just let her go. I know it sounds bad, but she just wouldn't listen to anyone. We have both tried therapy with her. Nothing helped her until we acted like we didn't care when she ran off. She will be 18 on Dec 1st. This year (2009) has been hell with her. Finally she is pulling her life a little better. She's working. She still could graduate, but she just runs from it. She wants the both of us to help her, which I don't mind, but I'm not going to do it, if she is not in school. This is not the life I want for my daughter. Since she has been 17 she thinks she can do whatever she wants. I just tell her you need to be in school. She has also done what your daughter is doing, and my daughter still could be smoking the weed, drinking, and whatever else she does with her friends. I haven't gave up on her, but it has just came down to her dad, and I just to let her learn the hard way. Sometimes that's all you can do. When she ran this last time, her dad and I didn't talk to her for a while, and that is what brought her back around. She missed us. In my daughter's case alot of it has to do with the friends she has been hanging with. I hope that everything works out with your daughter. I also know that it's hard.