It's definitely true that we learn a lot from our mistakes. I try to tell myself that I don't mind making mistakes, but that I never want to make the same mistake twice.

Whenever I see myself doing something wrong, if it's the first time, I take it as a sign of progress and learning. But if the same mistakes are popping up again and again, that can be a sign of bad habits unhealthy patterns etc and that's when it can get really bad really quick.

Some people have chosen to categorize this idea in terms of "Distress" (unhealthy stress, habitual stress) vs. "Eustress" (positive stress, exercise, growth experiences)