if i actually got the courage to kill myself, how long it would take for someone to find my body or how long it would take for one of my friends or family to find out that i did it.
And then you also need to think about how your friends and family would feel if you did it...
Do you really want to put people you love through that sort of pain? It is something that NEVER goes away so they will have to live with that for the rest of their lives.