Kudos to you for being a self-starter, but that barely described me. I have the ability to learn on my own, but if I didn't have an instructor yammering at me, then I was much more likely to spend the time in an unproductive manner.

I didn't have Wolfram|Alpha when I was in high school. TI-8x was my cheatsheet iff I knew how to get it to tell me what I wanted. If W|A had been a thing alongside self-study, I don't think I would have retained any information. I was a knucklehead. I figured that if I was doing the bare minimum to get an 'A' or a 'B', then I was doing it right. College was a rude awakening in that regard.

I do think that the US education system needs a bit of an overhaul. I don't think we have the manpower nor the funding to do it though. Public schools don't let students run at their own pace, because that would require a higher administrative burden than what schools already have. Technology has come a long way though. Digital lessons, the Internet, communication tools, grading tools, etc. have positioned us such that it would be much, much easier to implement these types of curricula. But that's still an uphill battle.