We all tend to resist stress. To begin overcoming this tendency, admit that stress is a normal and desirable part of climbing. Accept this not just philosophically but in practice. When you encounter a stressful situation, accept the stress and explore its details. Accepting stress will help you see a situation as it is and avoid the distracting tricks your mind plays to satisfy its desire for comfort.
Acceptance does not equal resignation. It means simply that you avoid wishful thinking and illusions, and focus on gathering useful information about the challenge before you. Saying, “I wish these holds were bigger,” is an expression of resistance. It will not make the holds grow or help you use them. Saying, “I hope there’s a hold up there,” will not create a hold or help you respond if there isn’t one. Saying, “If only I wasn’t so pumped,” will not re-energize your forearms or help you find the least strenuous path through the crux.
If your attention is engaged in resisting stressful facts, wishing or hoping the situation was different, then it isn’t fully present for gathering information to prepare for the risk. Later, when you begin moving again, if you resisted stressful facts, your actions won’t be deliberate.