I'm stressing out now.I need to study study study and study ! OMG ! can't i just dont take my PMR paper ? i'm fucking tired now -.- All the time i think is "how could i improve my math ? " "how could i remember all the formula ?" "how could i remember all the history ?" 

If you ask anyone , they would be answering "of course i want straight A's in PMR " Yes , its a general answer.I want it too.Who can help me get out of this ? 

I cant think straight -.- how should i change ? 

Things i need to remember is ..