Tony, also from UK here - here's wee quote to think about...
“Suicide is not chosen; it happens
when pain exceeds
resources for coping with pain.”
You are going through a very tough period just now - you are not weak or flawed, you just have more pain inside than you can cope with right now...
But the fact that you are here on this forum is good sign, you're a fighter...
How long were you on your anti-depressants? I noticed you said that they didn't work, but remember that taking other drugs on top of them will inrefere with how they work...
I really think you should get to see your doc/ a new doc ASAP - make an appointment tomorrow if you're not doing anything else and spill the beans, even print out what you have posted here to show him/her...
You are not a freak mate, you can get better and loads of people have been through the same as you and can go on to lead normal, happy lives...
You're 22 - believe me, when you get to my age (31), that's young - I wish I was 22 and knew what I know now... you are not beyond redemption, far, far from it...
It's real important that you speak to your doc before immediately stopping any drugs you're taking - you should make that your first priority...
We're all here for you Tony, keep posting and let us know how you're doing...