Firstly, social skills dont determination your worth as a friend of as a person. You have something to offer that im sure a lot of people would like. I think you believe this, the tough part is getting them to see that. Do you have any hobbies or interests? There are a lot of things you can do that dont require a lot of speaking to communicate. Dance is the best example I can think of. Learning to Salsa was one of the best things I did. It's a great skill to have, the ladies love it, and you can learn it without worrying about communicating too much. See if you can find a class somewhere. Or maybe cooking. Or if you play sports thats even easier. I've met a lot of people through soccer.