Thank you for responding. It is not easy being the youngest child. Also, your daughter may have some deeply rooted emotional pain about her father leaving from a while ago. It sounds as though ever since she entered the teen age years, her life has gone astray. It is hard for you being a single parent with a disrespectful child. Have you ever thought of professional counseling? Your daughter could receive on going counseling and so could you. Unfortunately, her choice of "friends" is not helping the situation. At an extreme level if you can afford it, you can always send her away to a boarding school or a boot camp type school.
Hope this provides a little insight. If you need more assistance, just ask!!! Have a great day!!!