You always have the potential for change no matter how much your life sucks. Suicide is just plain giving up, not saving yourself from the future.
I mean there are circumstances like some horrible disease or maybe if your family beats the shit out of you everyday, but most of us here are just losers who failed to make something productive of themselves. That's really no reason to stop trying.
Besides, you don't have that right. When you die, chances are somebody will be hurt. You going to put your family through hell because you lost your IPod? It's fucking selfish.
Oh wait I have a really goddamn tragic one here. This guy was literally in hell but he still fought hard. Died anyway, accomplishing nothing. But he's damed admirable anyway.