That is a good start! Realizing you dont want to be alone is the first step to correct that issue. I was in that same position. I was a loner, socially awkward (ok so I still am to some degree.) BUT I have made a lot of progress just by getting out their. I started asking people at work if they wanted to go to a concert and I was really afraid but now three years later I get excited going to concerts, theater etc. I have a long way to go but I can see the progress. Really the best way to get over this is to go out.