Some confidence should come from what you did before arriving.

Confidence that comes only from feeling good in the moment is fragile, because moods move. Confidence rooted in work you actually did is steadier, since it rests on evidence rather than weather. That kind of confidence survives a bad night’s sleep.

Before something that frightens you, take a minute to recall the specific preparation you put in rather than trying to talk yourself into feeling brave. Name the hours, the practice, the times you did a version of this. Feelings will still fluctuate; the record will not.