Underlying theory is important, but seeing practical examples that _explicitly applies theory_ has been critical in my particular electronics adventure. There are more ways to apply Ohm's Law (or Kirchhoff's Laws) than you can shake a stick at and seeing someone explicitly do the math and apply it while explaining a circuit that I am interested in has helped me get better at applying it.

I think the hardest things for me so far been (a) getting my head around the idea that everything in a circuit is happening all at once (rather than iteratively like an algorithm) and (b) "input" and "output" are convenience terms, e.g. an opamp can sink current through its "output". Both of these insights have come from seeing real circuits analyzed on YouTube.