No no no. Not at all. I was obviously less rational as a baby than I am now. But childhood neuroplasticity is a thing; it's easier to learn languages before age 10, and preferably before age 5. And kids have time. As a kid, when I did competitive swimming,I used to be in the pool >10 hours a week. Now, as an adult, I do taekwondo, and although there are 10 hours of class a week available, I only make 2-3.

I did learn some maladaptive thought patterns: i.e. my social anxiety spiral around "you just don't have enough natural talent to do X", and the kicker, "you aren't good enough." I know this is a pretty meaningless phrase, but it has emotional power because it's been around so long.