Have you ever wished you could go back in time and do things differently? Sure, most of us do. I recently came across a cereal box that had list on the back of “18 things to do before you turn 18.” This list got me thinking for two reasons. First, most of the suggestions (bungee jumping, create a new word, go backstage at concert) were useless in terms of helping people get the most out of life at that age. Second, I thought about what I would tell myself if I could go back in time.