Confused as fuck....

I just wanted to know everyone's honest opinion on this....I recently lost v back in the summer of 2014, I've only slept with 3 other ppl (protected sex) since, and on those occasions maybe once or twice the most. I'm 21, I'll be 22 in August...and I'm sick of being single. Every guy I talk to has the potential of being somebody I can see myself with, but for some reason communication btwn us will just stop. Idk if maybe I'm boring (which I hope not lmaoo) or if the guys I talk to are just not interested..ugh. I know I'm still young and I have time, but honestly the single is getting boring especially when you've been single all your life. I prob should add, the 3 guys I slept with, we had sex on our first encounter 😔😒, which I know not ever to do...but what should I or try differently next time?