This is sorta true but not the only way to look at it. I mean, yeah you leave everyone behind in turmoil if you kill yourself, but at the same time... there's a limit to how much one person can take without breaking down/going crazy. People aren't invincible, and I think the body can handle more than the mind can. I think it's selfish if your life isn't really that terrible and you're just an emo pity partier, but for some people...death is probably the best way to find peace. My 13 y/o cousin killed himself due to a similar situation, and as bad as I know it was for my family, I also don't blame him because I know it was tough for him too.