I didn't take time to read other responses... sorry if I duplicate others.
You HAVE to decide that you are in charge and the parent figure who KNOWs best. If you don't make her listen NOW, it will be much harder to accomplish when she is 6 or 16 or 19.
I know, I know, "How do I do that?" When you tell her something, MEAN IT. Make sure you have her attention first then expect her to do what is said. Have a talk with her first and say thingslike... things are going to be different from now on... You have to help me out... We are in this together... I will take away_____ (something you think she couldn't live without) if you don't do what you are told.
If you have never watched "Super Nanny", watch it a few times - she has good suggestions. I remember when our son watched it with us when he was about 3 or 4. He always was very attentive. There was one time that he said "I don't want to watch Super Nanny"... I think he KNEW it was right to obey and that that show gave us good ideas for discipline - which he didn't want.
Even though kids think they don't want to be disciplined, they need it... and they do NEED it. Think back to your childhood. Did you want to be told what to do? NO... no one does. But aren't you glad that you were disciplined?
You are her parent and role model. You have a job to raise her right and raise her so that she will raise her children better than you have raised her. AND I AM NOT saying that you didn't do a good job so far. You are a great parent or you wouldn't have asked that question. There are many great books out there... one is "You're a Better Parent Than You Think" by Dr. Ray Guarendi. He is excellent - we have heard him speak at least 8-9 times!
Please keep in touch if you have any more questions... I love to try to help others.
The thing I am most proud of in being a parent? Raising Christian children... it is so nice as they grow to not need to worry like I would have if I didn't raise them in the church and KNOW that my girls have in their heads and hearts to NOT have sex outside of marriage! Our 6 year old isn't there yet... but I feel very strongly that he will be within the next 5-6 years!
R.