Dude, I don't recommend offing yourself. Seriously, you'll miss so many awesome things! If everyone went around offing themselves we wouldn't have anyone left to fight off the robot zombies in 2012! I hear everyone's gonna get cyborg implants and AA-12s just for the occasion. I'm already stocking up on cans of sardines, sweet corn and fruit cocktail.
In all seriousness, if you think your life sucks, just save up some money and get Portal 2, I guarantee that game will cheer you right up.
Also this probably wasn't the right place to ask a question like this. Most people on the internet are.... special. I recommend contacting a suicide hotline, that might help.