Comp Sci work

In comp sci lately we have been working on labs and cramming before the AP. I am currently conflicted as to weather or not I should be studying in class or doing the actual class work. Now that there is a requirement to do labs and worksheets, I have found that a lot of time goes into do those activities instead of studying. While these do help and are probably better for me then goofing around, but I also have a nagging feeling that i will bomb the AP if i do not study constantly for the next week and a half. I am feeling rather motivated to study so now might be the time to study.