I was never taught calculus when I was in high school, when my mind was perhaps a bit more pliable, and I really wish I was. I've mostly gotten by alright without it but it's something that bothers me as a kind of "missed opportunity" to learn.
I do think school's approach to teaching math tends to be quite dry. I think I would have appreciated more of a "discovery" based approach rather than simply solving a bunch of textbook examples. YouTube content creators have really helped open my eyes as to how some of the things I was taught about in school are actually REALLY interesting when you stop and think about it.