If you mean getting over him, just consecrate your time to things that you've always wanted to do. Always look on the upside of things. You are free from him now... You are now free to do whatever you want (if it's right.)
Ok I'm a girl but I should tell you this. You don't just want to date just anybody and call them your boyfriend as long as they're cute. No no no. You should only have a boyfriend if you truly like and want to be with that person and love them. Not just because you want one. You're young and you have your whole life ahead of you. Just because people are dating and have cute relationships doesnt mean you have to have one. Go have fun with the single life!