i recommend you take a rest, even though you might feel like you shouldn't.
after resting, you will be a lot more productive, allowing you to do more with the time you have left; if you are truly exhausted, you can also make up for the time spent resting.
in college, it is often better to drop one subject or test if it allows you to finish others in the gained time; doing one good project is better then two half-assed ones
