60 percent right away or all at once. The first step is to remember that your initial blast of pain and fatigue is your governor talking. Once you do that, you are in control of the dialogue in your mind, and you can remind yourself that you are not as drained as you think. That you haven’t given it your all. Not even close. Buying into that will keep you in the fight, and that’s worth an extra 5 percent. Of course, that’s easier read than done.