Beat your previous preparation.

Preparation is the part of performance that is entirely yours. You cannot control the conditions or the competition, but you can arrive better prepared than last time, and that alone changes a surprising amount of what follows. It is also measurable in a way most things are not.

Before the next thing that matters, ask specifically what you would do differently in preparation compared to last time. One more rehearsal, one more question answered in advance. Then do that.