juz finish my math paper today... feeling less burdens on my shoulder... feeling so tired rite nw... wad happen to mi? feeling tt i am slacking n not studying hard like b4... why why why?? i am always feeling tired n wanna slp... sleeping is a waste of time... e time spent for slping can be used to study for 2 chpts of mb or phys... finished studying phys n mb but i still hve e feeling tt i didnt study at all... my brain is empty... i hve to focus... really muz rmb every detail of mb n phys into my head...