Yeah dude we both know that muscle attachments are the 'can just look up if/when needed' for most doctors most of the time (there are a few which are actually clinically relevant, but you'll find those out later), which makes having to learn them annoying. Ditto genetics etc. Plan your learning partially to pass exams (because that's a stupid requirement), and partially to become good at this. Obviously some of it overlaps, and obviously earlier on it's harder to know what's in that second category. But like 95% of us seem to blunder through each year's set of exams. And you're well above average. So do try not to let that artificial pressure bother you too much, and when it does, jettison stuff like muscle attachments and genetics.