I am currently reading the book "Talent Is Never Enough" by John Maxwell and in it he talks about how to maximize your talent through perseverance, responsibility, and initiative (among other things).
The best part about the book was the section on perseverance. I personally struggled early in my IM career that when I would feel tired or worn out, I would stop working and go watch a movie, hang out downtown, or just do something else that isn't as mind-intense.
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