Failure Me...Useless Me...

i get number 16th in the whole class...wth...
disappointed with my results...
last time i was number 6th in the whole class...
i can't accept this fact...
after i saw the results paper...tears almost drop out from my eyes...
i wanna cry but i dun wanna cry in school...
finally when reached home i cried...
y am i so useless??? y am i so failure???
how can i get this kind of results??
i dunno how to face my parents...i make them disappointed...
i not even dare to tell them my results...haiz...
i feel stress...what can i do???
i wanna cry now...=(