As you start to gain the right mind set again, the one you were searching for while using, you will start finding yourself again. Once you do that you will be able to focus on what you really need out of a relationship. I'd take learning about myself a lot more serious than any kind of path that means getting into a long term relationship right now. Even sleeping around could end in you putting your emotions into something you're not ready for, although if you can do it, go for it. Give yourself the honest time you need to feel "OK" and better than OK so you can reciprocate those feelings another can give you. We know we get what we give, and if someone is down in the dumps how much are you going to be able to give without ending up there yourself right now? Talk to friends, make some new friends, just mingle.