Resisting temptation?

I am a male who is 19 years of age. I need help in decreasing my desire for girls, , love, etc. I had an epiphany two years ago after i graduated high school that one needs knowledge in life more than anything. I am reading more books, becoming more articulate, and I'm a member of the debate club. I've changed a lot, but... I keep thinking of the female body and how I want to ly copulate certain girls. I need this to stop! It is interfering with my makeover. I wish to know what I can do about this. Please help me!!!