If I stopped for one second to think about how globally insignificant I am, I would realize how hopeless it is to try to change the world by myself. There really is no such thing as the Hero of the story. The guy who swoops in and saves the world from evil.
Over time things get worse, not better. I am literally wasting my life away. Too bad for me, I'm doomed here to stay. It's depressing to think about my world ending, might as well enjoy it while I can. Really the only way to make anything better is to change the way I think about it. A glass half full.