Super Duper Bad Luck

i just cant beleive it!!

i lost my pencil case with my calculator on the day before my exam and a few hours before the exam only i realize that i have lost my pencil case with the calculator TT^TT
why such bad lucks happen to me on the day of my year one final exam TT^TT luckily that day wasnt Statistic paper, if not i going to cry during the exams as i dun have calculator with me =o=
now borrow calculator from one junior and have to return back to him on the spot after exam =o=