Your signature seems to describe how to do it...shut the world out through imagination.
I've shut off from the outside world since realising that I'm Aspie a little over a month ago... need the space. I stay at home and speak to my partner at times, and also to our animals ( we have a small farm), and paint when I have enough energy and communicate to people who understand through WP.
I do speak to one or two friends by phone once or twice a week.... we moved about 300 kms from where they live.
You can read books, watch movies etc.....but have you tried to physically invent your own world by writing, playing a musical instrument, drawing, painting, inventing stuff or any creative activity?! !! ! 