Don't try to behave as though you were essentially sane and naturally good. We're all demented sinners in the same cosmic boat - and the boat is perpetually sinking.
I realized then that even though I was a tiny speck in an infinite cosmos, a blip on the timeline of eternity, I was not without purpose. And as long as I had a part in the music of the spheres, even if it was only a single grace note, I was not worthless. Nor was I alone.