We’ve been blaming screens for anxious kids. A new study points to a completely different culprit

As a kid, I was a perfectionist who had meltdowns if I colored even a little outside the lines. Arguably, my unrealistic standards for myself might have helped me perform better in school. But I still wouldn’t recommend them to anyone. My perfectionism didn’t just make me cranky and hard to deal with. (Sorry, Mom.) It also often prevented me from engaging in the messy but essential process of trying new things, screwing up, and learning from experience.  I’ve always thought this was just a…