Eh. It depends on the person. I find that study groups tend to get know-it-alls shouting out answers so everybody else knows that they're smart.

A beer is probably what you need right now. I've been through a few indocs at different airlines and the guys that always struggle seem to be the ones who study for 12 hours a day and then on test day take the entire alotted time to take their test. They go through every question then overthink it and change their original answer to the wrong one.

Get a beer or 4 and take a pause for the cause man.