Learning in general? Much easier if I care about the subject, and sometimes I can pretend to care long enough to actually care.
I’m almost always working through multiple books, taking advantage of the Zeigarnic Effect (first step makes next steps more likely?) and interleaving (from Make it Stick: the science of successful learning). Messier, but it feels like the more I know the easier it is to know more, and this way I have more hooks.
I use Anki for spaced repetition, ideally while reading, but I often read with TTS while walking, so I practice attending fully. My paper notes are a mess. Getting info into flashcards helps get it into my brain.
Clutter is a pain point. Space to work is important. A conversationally-adept personal assistant to help make flashcards while walking will be awesome.
Sometimes I use WOOP: Wish, Outcome, Obstacle, Plan (not my idea), to get beyond daydreaming.