Disappointed

Just got back my result...was shocked...mixed feelings...dont know should i be happy or disappointed...but i had the disappointed feeling more than the happy ones...scored quite well for 2 subjects out of the 4...but failed the other 2...it score was like heaven and earth..that much different...i failed my human resource again....i just wrote my appeal letter and really hope for the best...if i failed HR again...then that it man..i am out of SIM...not that i dont want to study but kicked out my the school...i really dunno y i failed that subject...although the question was tough, i could answer them...felt that i have wasted my parents' $$...i am just wondering do hardwork really pays off? quite discouraged right now...:(