WOW! Your daughter sounds a lot like me when I was younger. I was such a terrible teenager! My parents were divorced when I was younger and I always wanted to live with my dad because he let me do whatever I wanted to do. At 13 years old I had no curfew, could go anywhere I wanted, and didn't have to answer to anyone. At my mom's house though, it was a very different story. She tried grounding me, taking away priveledges, sending me to counseling. But I was so bull-headed that nothing worked. I thought I knew all I needed to know to make it in this world. Even though my mom always told me otherwise. Bottom line is that mom was looking out for my best interests and Dad wasn't. Dad was more worried about being the "cool" dad. Maybe this is what's happening with your daughter. My mom eventually got fed up with me and let me go live with my dad. This was the worst mistake of my life. Even though I did graduate high school, I went partying every weekend. Mixed in with the wrong crowd, and did a lot of things I thought was cool at the time but later regreted. I apologize to my mom every time we talk about this situation because of all the pain I put her through. I had to learn the hard way. A lot of times I think that kids don't understand what consequences are unless they are experienced first hand. You can always talk to your daughter and hopes she listens to you. But if she is anything like I was, she will want to do things her way anyways. Just always do things the right way and she will eventually realize that you were right all along! If you do let her go live with her father, let her come back if she wants. My mother would not let me come back to live with her after I left. So I was basically on my own from the age of 16 and I missed out on a lot because my dad did not or would not pay for things like new clothes, prom, or an open house after graduation. My siblings got all that because they still lived with my mom. Sorry this is so long but hopefully this story will help you and your daughter. Good luck!