If the key for a low IQ low work-ethic individual like myself to learning math is to drill a ton of practice problems while rereading and relistening to explanations, why isn't there a site that merely consists of dozens if not hundreds of practice problems for every little subsection of math you can think of? e.g. if I want to learn how to deal with exponents in algebra (simplifying them, dealing with negative exponents, etc.) I'd like to click on a site, navigate to section "algebra" then navigate to a subsection "exponents" and see a list with literally 100 practice problems or more.

But I only see sites with like 5 practice problems. That's insane to me. I'm fucking stupid. I can't fully take in a rule by practicing it 5 times. 5 per day at minimum for 20 days in a row sounds like it'd be nice, but if it's the same problems then I'll memorize answers instead of the process itself. BTW what motivated me to make this thread is that I tried to skip ahead instead of starting from scratch and realized I forgot almost everything from school. And I didn't know much from school to begin with so I think it's gonna take years for me to learn prealgebra all the way up to calculus.