Am I dumb?

I was dating this guy. We talked for about a year. And seriously dated for about 5 months. The relationship that we were in was mostly LDR. I spent a few weeks with him here and there over the summer. The relationship ended because I was too afraid to show him how much I really cared about him. I was scared. I know I hurt him and I'm pretty sure he hates me. I tried moving on and I couldn't do it. I ended up breaking up with the guy in like 3 weeks because I was still thinking about, let's call him Steve, Steve. I'm terrified to contact Steve because I think that he would just ultimately yell at me and tell me I'm a horrible person all over again. I know I deserve it too. I just don't know whether or not to try to fix the situation. Do you think I should just stop thinking about it and leave him alone or should I just talk to him and tell him how I feel? Some advice from someone other than myself would be nice.