Well, I won't lie to you and say that it's a walk in the park.
My physical endurance does get sapped from the lack of food and
water. And my brain is in hibernation mode by early afternoon if I
do too much mental exertion in the morning.
But it's not as though I'm crawling on all four limbs because of
the lack of food and water, either. 
Whatever the case, it's just one more week to Hari Raya. Then I can
have one whole day of nothing but festivities and
enjoyment....
.... before I get started on serious revision for the
end-of-semester exams the next day. 