Reverse my GRED^_^

I hope that I could be reversed my GRED for the coming SPM,
Especially for my weakest subject,
that's 'history',
Every time it lets me disappointment for every examination,
I don't know who can helps and guides me,
the one just can only rescues me from this 'trap' is 'MYSELF',
I have to create a lot of 'weapons' and 'technique' on how to solve the problem...

TEXT BOOKS + MEMORY STICK IN MY MIND + SHORT NOTES= A-.....

LOLZ.....

CRAZY WAY!!!!!!!!!!!!!!!!