During the course of one's lifetime he or she will have passed up a gazzilion great opportunities, or they shall fail in another way, such as accidentally putting their hand-knit-socked foot in a stray pat of butta left by floor-residing toast eaters *respectful heartfelt pause*

That brings us to my question: If you could go back in time to any point in your life and tell or warn your younger self of something, what would it be?

Your honest answers here, please