Not really. And I don't mean to nag, but if it's exams... study when you can, while you have time. You can catch up on sleep and hobbies once exams are over.

[ Cram as hard as you can then pass out for two days once summer break arrives, that's what students do ]

History is a lot of names and numbers, but historically accurate games surprisingly help... [ Historically accurate is sometimes up in the air, though ]