First, I discovered that we can force ourselves to endure just about anything if we’re sufficiently focused on our goal. This perseverance can help us prevail over procrastination, indecision, fear, and laziness. Second, I learned that self-discipline was a prerequisite to mental toughness. You can’t develop the latter without first developing the former. In a way, building self-discipline is training for becoming mentally tough. It’s a form of boot camp.
