Mastery isn't about the hours spent experiencing problems; it’s about the intentionality committed to the hours of problem-solving practice. In my younger years, a lack of proper perspective forced me to fight every battle as if I were a new, terrified, and untrained recruit, instead of believing I was an established, war-hardened, and seasoned general. A proper perspective means that I now, and forever will, regard myself as a master problem solver. And the largest realization of them all? Neither of us had to wait until our fifties to learn this.