Advice on how to move on.

i like this guy hes all wrong for me he has a girlfriend and I need to know how to get over him I like him and I dont want to anymore..

There's no way to turn your feelings off like a light switch. The key is to get involved in other things that occupy all of your time and energy and let time do the thing that it does so well. Thinking about it will only make it more difficult. Get busy and most important, learn from the experience. As bad as you feel right now, in the future, you will be a stronger and more savvy person from the experience.