How to escape hikikomori-dom?

While technically I am not a hikikomori, I live a very reclusive life, only leaving my apartment to visit my parents or other family and to do groceries etc. I am enjoying a comfortable NEET lifestyle, receiving generous disability benefits and living in a very cheap and awesomely located small apartment. I can afford anything I want(*) and have even saved enough money to survive 3 years without any income, yet I am struggling with my existence. It doesn't feel right, to live so completely alienated from normal society. It's not just social pressure, I think living such a life is harming me mentally. But I don't know how to fix this. I am 27 and haven't interacted with peers in over 5 years. Soon it might be too late to do anything about my situation. I also have a visible facial injury, which has a great impact on my self-esteem. I can't even imagine dating a girl because of this, it would be like beauty and the beast, but a Lars Trier version instead of a Disney.

I don't know what to do anymore, I just keep spending 10 hours a day on the internet or playing games to escape from reality. This works on the short term, but on the long term I feel my sanity slipping away and my anger/hatred towards society and myself increasing. Help me, /lounge/, I am desperate.

(*)I don't want anything besides computer stuff, games and consoles.

First thing to do is find a job. If you want to be able to date girls, your going to need to be able to say, "Yeah, I have a job."

Find about some local events in your area that peek your interest. They don't have to do with any of your geekdom, but it's still a great chance to meet some people.  Also consider being part of some charitable events, they'll make you feel better about yourself as well.

Try going to the bar sometime and get a drink and just chill.  You might not interact with anyone besides the bartender, but it's a good chance to just be around people and feel more comfortable with them. Who knows though, you might strike up a conversation with someone.

Also, do some exercise. It has been proven as a physical way to release stress and your body even pumps you with natural drugs that make you happier which can be quite a good sensation after sometime.  It will be hard at first, but you'll just have to fight through the pain and discomfort like every one else.  I absolutely hated running even throughout high school, but now I can run for forty or so minutes while listening to some nice tunes to pump to.  Having music that pumps you is always important. Here's an example that I listen to: http://www.youtube.com/watch?v=t6zu0mlvkHY

Don't let the world get you down. Keep fighting the good fight