The five-hour rule also includes reflecting and thinking. This could be just staring at the wall or jotting down your thoughts.

Focusing on the past gives you a chance to learn from mistakes you've made, as well as assess what you did correctly. As a result, you’ll be better suited to achieve your goals and improve your life.

Besides expanding your knowledge, reading can give you a good head start; this is often what your peers cannot obtain. 

Even if you can't commit to an hour or more of reading every day, start with 20 to 30 minutes.