I sit down and read through the textbook, taking notes on anything that seems remotely important, doing every exercise and problem set (preferably those with answers). I try to really grok the material and integrate it with existing knowledge before moving on. Much slower pace than any of my college courses, but I&#x27;m really starting to pick this up.<p>When I get bored of this, I play some games :) Or switch to another topic briefly.<p>As far as testing mastery, my only test is if the material in the book starts to become more intuitive. If I can do the calculations in my head or figure out the relevant formulas and equations without referring to old notes. I&#x27;ve also thought about setting up Anki, but for circuits it seems like a lot of work to figure out how to make usable cards.