Hi Silas208,
Just pay attention to your instructors during groundschool. There is nothing complicated with the 525 type rating course and all the questions are comprehensively covered by the training.
You'll generally have questions related to systems, limitations, memory drills and performance weight/balance calculations. Nothing difficult if you've been awake through the classroom lectures.......
I really enjoyed my training with FSI and hope you have a great time there too.
Best of luck
