I'm afraid to sleep, What do I do?

Now before I do anything else, I must remind you IT HAS NOTHING TO DO WITH FREDDY CRUGER! But i'm afraid to sleep cause' I am scared of my dreams, they are always terrifying and of thing even I am not sick enough to imagine. I..... I.... I don't know what to do I mean I have to sleep eventually but I'm worried about my dreams and they effect my school, my boyfriend, and how I act! I'm always scared and I can't stand it. What do I do?