From Doug:
Here's what matters in life:
Did you love someone, and did someone love you?
Have you had some fun, shared some laughs, and helped a few people along the way?
Did you make the world an ever-so-slightly, infinitesimally better place?
If you can answer these questions yes, shake your own hand in congratulations. You're a success. Continue that success for as long as you can, and don't worry too much about getting your act together.