A lot of times if the fiction is good enough I find myself really growing to care more about made up characters than anyone in real life.
Then when I go out into the real world it's just disappointing how much everyone in real life, you know, sucks, compared to the characters in my favorite games and books.
I used to do this too. Then I started getting to grips with my SA, and suddenly I didn't have time to think about anything other than real life! And now, I feel no need to, and I'm so thankful for that.
I guess if fantasy makes your situation easier to bear, Riptor, then it's a good thing, but think - do you really want the most significant interactions in your life to be with paper or the tv screen? Try and remember that real people created these characters. Real people are far more interesting than fictional characters can ever be because they never stop changing. They may not have super-powers, but they have other qualities that will become just as important to you if you let them!
Bishi-bishi, first off, I <3 the name!

Some of what I said above may make sense to you too. Fantasy may be your coping mechanism right now, but that doesn't mean it always will be. You may find people who share your love of videogames and cartoons and then it can be a source of social interaction instead!
People who have SA but are able to cope still have SA. I count myself in this group. I've managed to find ways of handling my anxiety most of the time, but there are still days when I can't face leaving the house. I really think SA is like alcoholism, every day is a new battle, but the important thing is to remember that losing today can mean winning tomorrow...
/end off-the-point tangent of thought-process... thing... o.0