So I caught my daughter looking at porn...?

Lesbian porn, to be exact. Needless to say, I was ashamed of her. Recently she has been acting out and I believe this is the last straw. I am thinking of sending her to an all-girls school to remove men from her life for a while, as they are obviously influencing her so much that she is starting to think like one of them. However, I recognize that there may be other options available, like sending her to a psychologist. What should I do to fix my daughter?