Cookies, Guts, Independent Thinking, Consistency, and Small Bets — Last year, to preemptively manage the inevitable coming of age shenanigans of a soon-to-be 21-year-old, I wrote myself 21 rules to stay on track and avoid the downsides of too much debauchery. Largely successful in adhering to my own advice, I picked up six additional life lessons since last year…