I dont beleive its selfish unless you have a young child depending on you. The only way any of you have the right to say it is, is if you have been suicidal before.
I have and not saying all of you coz i dont know simply but most have never even thought of the idea before.
What im trying to say is many have no idea of the pain you feel or have a clue of the suffering at that point in life.
No-one in the world deserves to feel that way, its not nice and life is meant to be happyness that god created but if your not happy and have tried everything possible to be happy then in my opinion you owe the world nothing, and should feel no guilt in putting this horrible day to day feeling to a stop.

my 2.5 cents........