Been there and have the Tshirt, Lady! Prayers to you. I had trouble with my teen age daughter years ago. Everything was a trauma with her and she only had brothers. She had (and still does have) PMS really bad, so I knew that was when we usually had our arguments. Not sure if it is still available, but Teen Midol was a BIG help and I found Extra Strength Midol for me. She had raging hormones, so did I and it was a ticking time bomb us both, but this helped. My poor hubby bore the brunt of both of us! He finally learned to "look at the calendar for red circles and back off".
Set specific guidelines for her and stick to them regardless of "whatever so and so is doing". Not everyone needs a cell phone, computer or a car at 16. I had better luck by having her girl friends over for weekend sleepovers. I knew who they were, where they were and what they were doing. I rented movies for them, bought pizzas and sodas and they watched movies all night on my den floor in sleeping bags. I made the extra effort to meet all her friends and stay involved in her life since we lived in a rural community with nothing to do. As I met her friends- boys and girls alike, some I told her were NOT welcome and I did not want her associating with them again. It helps if you can meet the parents, too. Raising good, well mannered kids nowdays is hard and especially hard keeping them "focused on education and college", when many of the girls can't to wait "get pregnant and get their free Section 8 apartment". Little do they know most of them are doomed to poverty by doing this.
Now, my adult daughter, who is now a colleged educated, licensed, State police officer, and is best friend. She is married and expecting her second baby. She thanked her Dad and I many times for keeping her head on straight about who your friends are AND starting and finishing college is a MUST. Many of her high school girlfriends had kids and got married and did not go to college and are stuck in a low paying job, whereas she is not. She realizes now there IS life after high school (you will probably not have anything to do with your high school girlfriends), whoever you dated in high school is in the "H(istory)" column and getting an education is the BEST gift you can give yourself.