Problem child-daughter?

You are the mother! You can force the rules! It is your home and as long as she lives there she will have to abide by your rules. I am 21 and that is how it was at my house. But from my point of view and I can relate to your daughter, it doesn't hurt to come to some agreements. It helps to just sit down and talk about what you expect from one another NO yelling and screaming just talking! Sometimes it can surprise you what the other person is feeling and it is just a simple solution to the problem. Also make her want to be around the house by making a wonderful home life. Let her know you want to be her friend not just her mother. My mom and I are best friends now I can tell my mom things I would never tell my best friends or anyone else. She is my friend first before she is my mother! Anyway just be available for her!