I Don't Know How To Fix It

I'm 23M. I have hit the point in my life where I realize I have no true relationships (friends, family, girlfriend, etc,) and I don't know how to fix it. I have always been an anti-social person ever since I was a kid and never really had a problem. Last year I got hurt at work in which I broke my knee, tibia, ankle, foot, shoulder, and cracked my skull, so it was pretty bad at which I found myself in a pretty low place mentally which is to be expected. While I was hurt I tried talking to my "Friends" and pretty much once they figured out that I couldn't help them like I usually would (Mainly Just like handyman and mechanic work) they didn't want to have to deal with me and my Family was pretty much the same way and my girlfriend broke up with me. Now I pretty much all healed up and have been trying to get out and make some new friends but nothing seems to be working. I have been going to the gym, parks, car shows, and a few bars trying to make new friends but i live in a rural area next to very small towns so I have not been having much luck. I'm trying to find a good balance between helping people and not just being used and I really don't know how to. If you have any advice that would be great!