Scared to be in a relationship

I was in an abusive relationship for 2 1/2 years (got out of it a year ago) and I'm honestly scared of ever being in another relationship again. We are just teenagers (18) he was my first love, and my first ever boyfriend and I'm just terrified of being with anyone else because I don't ever want to be put through that again. I know all guys aren't the same but still. I also suffer from bad anxiety and other things from everything I went through during the abuse. It sucks because guys do try getting to know me and be with my but I just push them away and they don't understand why.. I already had trust issues with guys before all of this (because of my father when I was younger) and now it's just worse than it ever was.