First, welcome to PT.
Second, look outward, not inward. By that I mean, focus less on what you think you lack, and more on what you can do for others. Volunteer, help someone else out, do something for a neighbor, almost anything to just get out and about. There is a saying, that of course I forget exactly, but, it has to do with being a great listener, and how people find that those sort of people make the greatest friends...he he he..I guess cause we always like to talk! (well, some of us, anyhow).

As to going out vs. sitting at home, well, I am QoHS (Queen of home sitting). I don't like to go out. Not cause I am anti social, but, I prefer the comfort and convenience of my home, or someone else's home. So, invite people- just one or two- over. Do home projects...something to keep the hands busy and the minds off of 'socializing'. With practice, it gets easier.

I have told people before that I don't have a shy bone in my body. So, in a sense, it is probably unfair for me to make it seem so easy. But, things do get better with repeated exposure (well, not things like injections, trips to the dentist, or childbirth). So, practice away!

Good luck, and try out your social skills on us!