Actually, your reason number one is the only valid reason for not committing suicide. And it boils down to this: that life is ultimately so pointless that dying is too. Everyone is dead in the cosmic blink of an eye. Don't like being alive? ~It's much the same as bemoaning the weather. Sit and look at a wall for a bit and it's all over with soon enough. Life, as the old saying going, is a mere crack of light between two eternities of darkness.

The second reason isn't that convincing, as it implies the existence of an ongoing consciousness to have any relevance, a consciousness that ceases at death. Yes, one's parents or friends will be perturbed, but ultimately it is delusional to even care about it. The fact that your family will be upset, although it makes perfect sense for the living to worry about, is actually of no more consequence to the dead than what future products Google may come out with. People confuse their real lack of a desire to die with concern over the feelings of their surviving families: but there is no real reason to care about how much pain you may cause as at the point of non existence none of that exists. If I were to die, and if my parents were upset, so what? Why would I care about something that I will never have any consciousness of?

That sounds savage, I know, but I see no logical reason to care about something that occurs after the point that I would cease to be around to care about it.

Life is not for anyone. Though you should phone "a helpline" (everyone owes it to themselves to give a reasonable fight). You should also do what the fuck you want with your life.