Most ideas aren’t inherently confusing, but their technical description can be (e.g., reading sheet music vs. hearing the song.)
My learning strategy is to find what actually helps when learning a concept, and do more of it. Not the stodgy description in the textbook — what made it click for you?
The checklist of what I need is ADEPT: Analogy, Diagram, Example, Plain-English Definition, and Technical Definition.
Here’s a few reasons I like the colorized equations so much: