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And dude exams dont be so stressed about exams, then you are gonna real fuck it up. So, celebrate your birthday man! Forget about exams, studies and related shit for sometime and enjoy yourself. Then you can study better with a fresh mind (not like it's much applicable in my case, but who can say it can work in your one).
But dont blame me if my suggestion does not work out well (◍•﹏•)