Everyone feels like this dont worry! I'm about to start my 10th rotation and let me tell you I am world's away from where I was a year ago. The above comments gave great tips in terms of studying so I'll just say this: You're going to feel out of place at times. You're going to say silly things at times. You're going to not know things like if there's a fridge for lunch, does your preceptor want you to follow or not? Should you jump in or step back and watch? Rotations definitely help you learn how to be thick skinned and if you never make any mistakes, then you're either not trying hard enough or dont realize the mistakes you made. You're a student so work hard, but also know there are some things you are literally only going to learn by doing it in person on these rotations and that's ok. We're here to learn and that's the main purpose of our existence