Live life while you have it; the fact that you have it is highly improbable, the fact that you will lose it is guaranteed.
The fact that you are even here, alive, on this planet is a mathematical miracle, and you should not spend the time that you have being busy being miserable.
If we as people view everone who's not a part of our group as the monster, and we treat them like the monster - they either become the monster, or we're actually the monster.