I was raised the same way and can relate to all you've said about your mother. (My mother is about the same age and was raised in the same era.)

These two are my favorites: ---- When others said, "We need a time-out," or "This is a teaching moment," she just looked at you in such a way that you knew that there would never be a worse feeling than disappointing her.

When you played a song on the piano and she didn't recognize it, she said, "For this we need lessons? Go practice some more!"