Even if you don’t feel brave, you should take one more step.

Bravery is not the fuel. Swimmers finishing a long set are not brave on the last length. They are tired, and they have worked out that the wall is closer than the argument about stopping would take.

Feeling comes and goes and is not load-bearing. A step is a physical act, and it does not require an emotional state to authorise it. It stays available to people who feel nothing much, and to people who feel frightened, including you tonight if tonight is one of those.