Tooo relaxing?

isshh
exam starts almost one week already .
yet I'm kinda relaxing in everything
not just me ,
lots of them were too over relaxing
now they even revision until midnight also havent went to sleep
LOL
I cant figure that how they can not sleep
while encounter tomorrow's exam
for me ,
if you'd study at least a blink of an eye
at least u can remember some

*I'M　ALSO KINDA WORRY WITH MY HISTORY* T_T