The best way to cheer yourself up is to try to cheer somebody else up.
I do not fear death. I had been dead for billions and billions of years before I was born, and had not suffered the slightest inconvenience from it.
Giving up smoking is the easiest thing in the world. I know because I've done it thousands of times.
Truth is stranger than fiction, but it is because Fiction is obliged to stick to possibilities; Truth isn't.