The hardest thing for me to get used to was to acknowledge the fact that I couldn't predict jack sh!t. Classes that I understood the best & knew I did the best on the final - turned out to be my worst grade. And vice versa.
I co sign on this. You can't predict anything. When you are in undergrad, you know that if you work hard, you will get good grades, because there are some people who aren't working hard. But in law school, everyone is working hard, but everyone is not necessarily working hard the right way. Don't let other people intimidate you and figure out what works for you. That was the hardest part for me. I knew what worked for me in undergrad, and instead of doing that, I bought into all of this stuff that books were saying, that other students were saying, etc. It was not helpful at all. I'm not saying at all that law school is like undergrad. It isn't. But I was always active in my learning process in undergrad, I never listened to other students and other people and their experiences, and I always developed my own study plans, etc. according to what worked for me. So, figure out what works for you, and hold on for dear life. If you do decide to listen to other people's advice, take it with a grain of salt. There is really no way to prepare. Good luck!!