I love such stories. Thanks for sharing. I'd be super glad to read about your process, your note-taking techniques, etc if you ever write a blog post about it!
I should do that. Will post it to my twitter (in my profile) if I do.
Honestly i wrote as many notes as I could in a way that someone else could pick up and understand and the main thing I stuck to was never using a calculator until I absolutely had to, even if it was slower, so I could build a stronger foundation. I’m not sure I ever looked at the notes though.
And then I was just very disciplined about spending a few hours a day, every day, for a few months, drilling course by course, and didn’t skip anything in the knowledge map (at the time).
I still make time every weekend to learn something new or work on a challenging project for a couple hours a day while my little girls are napping.