Or perhaps you played a concert or church service and some people came to you after the event. What did you think about?
"Did they like it?"
This thought, although almost irresistible most of the time, can be counter-productive because it forces us to try to please someone.
It's not the same as a healthy striving with the idea of how can I improve? It's a perfectionism which raises the thought "what will they think of me? Will they find out that I'm a fraud?".
Sure, try to become better at what you do every day. But it's not clear to me that we should have a fear of losing self-respect if someone else doesn't like what we do.
[Thanks to David for inspiration]
Kyrie III (p. 4) from the Mass for the Parishes by François Couperin (1668-1733), one of the most influential French Classical composers and organists.
God Himself is Present