Thanks so much for the comments!
So I really did math because I am good at it. I don’t like it because it feels “too easy” to do. If it were more challenging I’d probably like it better.
I would like this to turn into something much bigger! I eventually want to make a few of these mini-courses into full courses for homeschoolers, because I was previously homeschooled and my parents couldn’t find a tough curriculum for me. I want to be able to make a curriculum for academically inclined individuals.