Single aint too bad. I spent majority of my time being single. Just wasn't really one to be committed back then. Theres up and downs to being single and being in a relationship. Both have there strengths and weaknesses. I think you should just take it easy, do you for a little bit. Reconnect with some of the lost bro's. Cuz I'm sure there are some that faded away when you and your ex got serious.