Confidence becomes durable when failure cannot confiscate it entirely.

If your confidence can be taken away by one failure, it was never confidence in yourself. It was confidence in a streak. Durable belief includes the knowledge that you have failed before and continued, which means failure becomes a familiar cost rather than a threat to your foundation.

Recall a time you failed and kept going. Make that memory part of what you draw on rather than something you avoid thinking about. Confidence built on a record of recovery holds up under conditions that confidence built on a record of wins cannot.