why did i become such a noob in doing a maths?

k i was darn tired today. didnt get thrashed by teacher, but almost. ):
and my piano is like crap. ):

PLAY PLAY PLAY ALSO CANNOT HIT THE CORRECT KEY ):

k idk how to do a maths example three of remaninder theorem ):
i shall spend more time on studying :D

BYEBYE :D
my usb's not working ):