I get it. We're all busy, and when we're not busy, we don't want to use our downtime to study. Over the years of my own learning, I've found that the hardest step is just getting myself to sit down and work sometimes - I'd rather do a thousand other things.
But studying doesn't have to be time-consuming. In fact, you can do it without taking time away from whatever else you have to do.
Although "real" learning isn't memorization, we do actually have to memorize sometimes: vocab words, formulas, measurement conversions, or special right triangles. But sitting down for a long study session of...