I have found, that sometimes when you think you have f’d up the most and that everyone knows, that nobody noticed at all, especially if what you do is abstract or foreign to those around you.
For instance, 99% of the people in the audience at my Bar Mitzvah, Jewish folk included, didn’t speak Hebrew. So what did they say after I made about seven mistakes - and I stepped on the Rabbi’s foot? “Great job.” And did anyone know? No. Noone knew. Even the Rabbi walked that limp off before it was all over.
So play it cool, smile all the way through, especially through the mistakes and you’ll be fine.