I’ve had that too. I’ll get confidence if people suddenly show confidence in me and I “have to perform” and have no choice in it. I find my groove.
Plus, the right outfit *does* make a difference, it’s true. Strange example: As a kid at the Methodist church, I’d be called in to read or light the candles without warning.
I’d have 5 minutes to get into a robe, and do whatever I had to do. “Go do it”.
And, so I did. I was confident *and* nervous at the same time, but mostly confident. That’s nature too though, but the robe DEFINITELY helped, oddly enough. I can collect myself in stressful situations. I don’t know if that “pull it together fast” thing is in everybody. I also can exhaust it very quickly, so I try to avoid being in situations where I’m called to do that regularly. When I haven’t, I’d suffer from performance burnout.