Never quit. If you stumble get back up. What happened yesterday no longer matters. Today's another day so get back on track and move closer to your dreams and goals. You can do it! Great life/motivational quote.
Unfortunately, we learn, a little late down the path, that most things that we worry about and give our utmost intentions to don't really give us comfort . Stopping and putting things in perspective of fond memories and happiness doesn't happen often enough.