My question is simply, "Why?"?

This may sound vague, but bear with me and think for a while. My question is just, "Why?" Why do things happen the way they do? Why do people do things why and how they do them? Why is anything, anything? Why is there anything at all? What's the point of doing anything if our fate is inevitable - death. Yes, you will die. Some day you will die... wouldn't it be easy to accept that now rather than later? Why should anyone even struggle through life - the depressed, the angered, the saddened - when they could end it all if they chose to? Are they afraid of some dark and terrible afterlife that awaits them, or do they feel that they still have something to live for. Not only do you have to accept you will die someday, you could die any day. You could contract a rare illness, be shot in the street for no reason, be hit by a meteor, there's so many ways you could just die. So my question is... what's the point of living then? It feels like the only answer is that they fear something worse awaits them later on in the afterlife. Or rather, they believe the Nothing is after life. The entire concept of nothing - the complete absence of any form of substance - is rather scary and peaceful at the same time. You have nothing at all; you don't even exist when you're nothing. Let that sink in. Nothing awaits you after nothing. You are the very embodiment of nothing. But if you don't believe my Nothing-Afterlife theory or in some Hellish Afterlife, why are you alive?