Am I ready?

So I have been single for a while now. In June it will be about a year and a half. That is the longest I have gone since I graduated high school 7 years ago. I was always a relationship person. Went from long relationship to long relationship without very much time in between any of them. And I liked it like that. I liked having a boyfriend. When I wasn't with someone I was always looking for my next boyfriend. But over this year and a half I have gotten used to not being with anyone. Only taking care of myself and have become very independent. I like not having to report to anyone or make my plans around anyone else. Also, during this year and half I have realized what is necessary for me in and what I definitely need in a mate. So, much so that I have become super picky. Not like I don't give guys a chance. I do. But recently I met someone that I kinda like. That I might possibly want a relationship further down the road with. So, why does that thought scare me? Is it him or me? I don't want to miss out on a good person because I don't want to be in a relationship. Or maybe I'm just not ready to be. I thought I was, but maybe I'm not. How will I know when I am ready? I guess time will only tell.