That's great advice, Amy! Yes, when you experience anxiety, that's the clue that tells you to ASK YOUR INSTRUCTOR!!!
Another famous anxiety experience in Module II is E/M codes. When you see what the textbook goes on about, you'll have some misgivings, but it is just telling you a lot of things that you aren't going to need right now. You definitely don't need YouTube videos to explain them if you don't need them at all!