I think I'm pretty good at self-teaching w/ textbooks. I will admit that there were 1 or 2 classes at college where I completely skipped the class and just read the textbook because I could absorb info faster than attending lecture.

I got a copy of Benjamin Pierce's `Types and Programming Languages` and I've read basically the full thing and have completed 80% of the exercises.

Currently working through a couple other textbooks slowly. I find that taking notes and doing the exercises is essential, otherwise I lose interest. (Same with online video courses)