that stupid experiment made me sad! argh!!

Today..at the end of the exam...
bru aku tau aku buat slh -______-
sptutnye tulis silver but aku tulis copper -_______-"
mmg b*bi oh.. knpe lah aku tk focus sgt kat arahan tu..haihh
tk boleh dah nk buat ape..dah lps dah..all i need to do is be patient.. *sigh!
i thought my chemistry is gonna be just as perfect as i thought because paper 2 n PAPER 3, i almost can answer..
but only that f*cking experiment....make a problem! jezzzz.............grrr