When I was in school and worried about a test, my parents would usually say, “Just do your best.” I knew they meant study, get help from my teacher if I needed it and try to answer the test questions in the best way I knew how to do. No one called this being a perfectionist or worried about our mental health.
Yet at some point, someone noticed there were a few people who took things to an extreme. They expected themselves and everyone around them to be perfect all of the time. So we started being told to “chill” a bit and not worry so much about being “perfect”.