i'm in DeEp trOubLe!

Damn it!.. i just cannot concentrate on my revision!.. I'm in too deep this time. My national exams are like 2 weeks away and yet i have start on any subject for revision. I don't know why my brain is like a dead log this time! Stupid me for revising at the last moment, and this is what i get!.. Haiz.. Will somebody help me please!.. I'm in a delima here!!! .. My a.maths and physics are like the worse one amongst the other subs but i've yet to start on it.. haiz.. But luckily i only have 4 subjects left!.. So i'll divide to 2 subs per week!.. haiz!.. Please pray for me that my brain cells are not dying and are working actively inside those veins in my brain!..