Need some suggestions to move on from past relationship?

Well we both dated for 4 months and were happy. But when we started to talk about the future, we realized that we don't have any. So we had an amicable break up. We are in the same class and college will reopen next month. Please tell me how to get over him as it is pretty hard. Practically I know its the right thing to do but emotionally its hurting real bad. And I know he is going through the same thing. We don't date people usually, so finding someone else is not a good idea. So I really need some good advice on this.