Kids are very vulnerable during these years and have a need for privacy that should be respected. That doesn't mean that you and she should not maintain any close relationship that you have established -- it means that she needs to feel independent from you so she can move confidently into her young adulthood.
On issues like going out with friends who drive, drinking, drugs, sexuality and sex, we all hope that the values and beliefs that we have espoused to our kids will guide them as they navigate the troubled waters of adolescence. We cannot forbid our teens from doing things we dislike -- that doesn't work. We can keep the communication lines open, even if it appears that they are not listening. The worst thing to do at this stage is to become frustrated and to stop talking to them. They need to know, more than ever, that we appreciate them and the efforts they are making to "do the right thing".
The following parenting books will provide you with a solid base of advice and pragmatic techniques to parent your teen: The Parent's Guide: Systematic Training for Effective Parenting of Teens, by Dinkmeyer and McKay Parenting by Heart, by Taffel and Blau You Can Say NO to Your Teenager and Other Strategies for Effective Parenting in the 1990's, by Shalov et al.