The first think you can do, Anon, is to just take a step back. The more you believe that your entire world is falling down, then the more problems you think you'll have and you'll find it so hard to resolve them.
I can't exactly tell you what to do, but just pick each issue you have with yourself and others and change them one by one - thats the way to you reaching a happier place in your life.
For example, friends. Friends don't have to be actual real people, they can be anywhere. If you find it hard to trust friends or develop personal relationships with people close - then being on an internet forum is a start.
It seems as though you have a lack of confidence, and with a forum you don't have to show yourself, but just give a personality which inside is secretly being destroyed, but at the same time you get comfort from people and can share problems and common ground.
Perhaps try writing a diary. Talk to yourself, as sad it sounds.. But that way you might clear off from your head. Go out and visit places you never thought you would. Just to get away from everyday life will help you - and build confidence in yourself that you dont really need anyone but yourself.