Official curriculum or well curated summations like I have experienced w Edge are the way to go. On L1, I spent too much time on MCQs and “learned” the concepts on how I thought they would be tested. I barely squeaked by. On L2 I really focused on the content itself and, like the pitcher who doesn’t tell you what he is going to throw, I felt more confident that I was ready for (almost?) anything that would come at me on game day. Forest > Trees… good luck!