For me, college was a good guide to find ideas that I might not have found on my own, or might have found in a suboptimal order. Hearing the basic ideas always got me excited enough to dig on my own, see how they're used, and what they build up to.
> As it is, two hours of lecture is two hours that could have been spent actually learning instead of wasting time.
The most wasted lectures that I attended were the ones that I went to, but did something else instead of asking questions. There aren't many situations where you've got a roomful of people at your level or above (including an expert in the subject) that you can pose questions to.
> But for someone who is stupid like me, it just doesn't work.
Where did you get the idea that you're stupid? I don't see any evidence of that, and thinking of yourself that way is going to damage any of your efforts. Stupid people aren't generally the kinds that come onto HackerNews to have discussions about the nature of education.