Orangered I agree.
There is nothing wrong with wanting your space and alone time. But, like everything, too much can be a bad thing.
Humans are social creatures, and by shutting yourself out and not learning social skills, your only going to hurt yourself in the future. How do you expect to function at work if you been isoloted for so long? It's not like you're living in a cabin in some far off woods by yourself.
I think part of the reason why I'm a high functioning Aspie is I forced myself to go out, even though I didn't want to, meet friends, be social, and basically as Orangered mentioned, exsersized my social skills.
I've noticed that times I have spent alone or not interacting with people, my social skills begins to dramatically drop when I do finally go out.