Fire drills work because the plan was made while nobody was scared. Decide early, act fast later.

The point of a drill is not the day itself, it is moving the thinking to a calm afternoon. Nobody designs a good route out of a building while smoke is involved, so the route gets drawn in advance and the moment only asks for obedience to your earlier self. Speed under pressure comes from decisions already made. Panic is poor at choosing and perfectly good at executing.

Pick something you know will eventually happen, a row, a bad mark, a shift nobody can cover, and decide now what your first five minutes look like. Write it in your notes.