Time.... give it time. You just got out of a relationship, so why jump right back into another? Explore the world, yourself, your potential opportunities....
I agree with wyrpamatz.
You're 20, correct? Are you in school or work?
I would dive into positive activities and not really focus on the next romance just yet or when that will be.
I think you should wait awhile before you start dating again so u have more time to spend on yourself.