Sorry, I meant to add more but got distracted and I can't edit now.

I'm in my mid 30's. I'm happy enough where I am now; my biggest issue has historically been focus and apathy more than understanding concepts, much to the frustration of my teachers in high school. I was that frustrating kid who clearly understood the concepts perfectly fine, and was even fairly active during class, but I wouldn't do my homework so the teachers would be forced to give me bad grades.

I obviously don't blame the teachers for this, they're doing what they have to, but I do sometimes think that the system is a bit too one-size-fits-all, even still. I took advanced classes in high school, I got very high ACT scores (36 in English, 34 in math), but I still have always had middling academic performance because the teachers would be stuck giving me crappy grades.

For reasons slightly involving skill but mostly involving luck, I managed to cobble together a successful software career even after dropping out of college the first time around, worked without a degree for almost a decade, and eventually worked as a practicing software engineer at the senior level at BigCos. I have a bachelors now, and even a masters, and some graduate PhD work (though I didn't finish that, too time consuming while working full time), but these all came after I had established a decent career.

I think that being a little clever [1] certainly helped me through this, but what I think helped me more than anything was the fact that a) I had a geeky hobby of learning how to program when I was fourteen or fifteen that never really went away and that I was able to fall back on and b) dropping out in 2012, which just happened to be the year that pretty much everyone got a smartphone and consequently there was a huge demand for programmers and they were willing to overlook a lack of credentials.

My life has turned out fine; not perfect but certainly better than most people on this planet or even this country so it's hardly worth complaining over. I do wish I had taken school more seriously as a teenager because then I would likely be able to have move into a more mathy-theory-based role, which I seem to be unable to do as of right now [2]; it feels like I'm playing a game of catchup, which isn't impossible but it definitely is harder than if I were able to focus on school full time.

Dunno why I decided to dump my life story at you. Just one of those days I guess.

[1] Though as I said in the sibling comment, probably not nearly as clever as the tested IQ suggests.

[2] No matter how many I apply to, it seems. It doesn't help that every researchey role now is for AI/ML theory which is cool but pretty far from my expertise or the kinds of math I've studied or have any expertise on.