“I did my entire pull-up workout over again. One missed pull-up cost me an extra 250, and there would be similar episodes. Whenever I cut a run or swim short because I was hungry or tired, I’d always go back and beat myself down even harder. That was the only way I could manage the demons in my mind. Either way there would be suffering. I had to choose between physical suffering in the moment, and the mental anguish of wondering if that one missed pull-up, that last lap in the pool, the quarter mile I skipped on the road or trail, would end up costing me an opportunity of a lifetime. It was an easy choice.”