Mental Toughness vs Mental Flexibility

This is part of an article on mental flexibility and could be helpful in those tough lead situations:

"Climbing has “no-fall” and “yes-fall” risks. You determine appropriateness differently for each of these. In no-fall risks you weigh the strength, skill, and confidence you have left, compared to what is left to climb, in order to pass through the difficulties and not fall. You usually climb more slowly, stay on routes below your technical ability, and you do listen to your mind when it determines you can’t or shouldn’t continue.
In yes-fall risks you weigh the fall consequence you face—length of fall, obstacles, etc.—against your actual experience taking such falls. You climb more quickly, get on routes at or above your technical ability, and you don’t listen to your mind when it says you can’t continue."