First of all, my prayers are with you. There are no easy answers or easy solutions. We can all offer you good advice and sound biblical principles, but only God really knows the situation with your daughter.
A couple of thoughts:
1) Ask your Priest if he knows of some people your daughter's age who embrace their faith and could be a positive influence on her. At her age, I am guessing that she is more open to what her peers say than to what those in "authority" have to say.
2) Try not to make Church seem like a chore or punishment. Catechize her as best you can. We hate what we do not understand, and thereby we become prejudiced towards it. Start with simple things like the homily. Discuss the Priest's homilies with her, and do so by applying the message to you,
not to her
. This will help her to see you less as an authority figure trying to tell her what to do, and more as a person who also struggles with sin and the problems of life themselves. Over time she will come to realize that Orthodoxy is not something you are forcing on her, but rather something you deeply desire to share with her.
But I would nevertheless remain firm in your role as a parent. She will have plenty of time when she leaves your home to "discover herself." But she is still your child now, and she needs abundant love and consistent discipline.
You may want to try doing something fun every Sunday after Church. Take her out to lunch or for coffe or ice cream. Take her to a movie, or whatever. This will help your daughter to associate Church with your love for her and your desire to spend time with her. Eventually I believe she will begin to view Church in a positive manner.
Above all, have faith and hope in God.