man, I am totally in the same boat. So depressing

Im also a guy in my 20's who life has been a total failure up to this point. Im not working at the moment as my position working in a warehouse became pretty much unrequired due to the recession etc.
I've got some IT qualifications but nothing special. I went to college to study IT when i was younger simply because i NEVER had an idea of what i wanted to do with my life. IT sounded good/sensible. Basically I have no interest in computers though and the courses were really a bit of a waste of time.
I so desperately need some help. Have any of you got any stories where you 'found' something and your life turned around? My whole situation is made a little harder still due to the fact that I cant drive, and I also suffer from social anxiety in some situations, which tends to mean that anything 'work related' becomes 10 times harder (e.g job interviews!!)
Basically It seems like my options are to either go and find another brain dead job in a warehoue OR 'SOMETHING ELSE'. Im just not sure what the 'something else' could be. Most of my friends are starting to become quite successful in their 'careers' and im left behind feeling like a teenager still.
At the moment im thinking maybe a 'trade' (plasterer?). Although again that is something that I dont have any real interest in. Its just that I know that you can earn good money doing it and I quite enjoy being 'active'.
People always say to look at your interest and skills etc. That doesn't really help me though; If you asked my friends, they'd say that 'music' is my 'thing'. However, I know that im not good enough to make a job out of it. I play piano but am self taught. It might impress my mates but i know that its not enough.
I also love animals - but Id need something where I could pretty much start without having to take years and years in college again, as, like i say, im well into my 20's now (God, even WRITING that hurts!!)
Any help??