Tbh, I know exactly that feeling, although I think that my own experience is different from yours, I remember I was introducing my graduation note in front of students and some academic professors of the university, I didn't feel shy, but I had fears to fail that time,
There's quote I don't know if it could be helpful for u but I'm sure it is very useful, " don't fear failure, in great attempts, it is glorious even to fail."
_Bruce Lee.