The faithful servant is the protagonist because he is the hero of the story. He accomplishes the tasks that the king is supposed to complete to prove himself. He proves himself to be good and faithful. The king is the antagonist because he is trying to profit off of the faithful servant's efforts. His efforts are in opposition to the faithful servant, who is the one who truly deserves the princess's hand in marriage.
Its ok to need help sometimes but remember that you still need to do ALL your work and try your best!! you got this!
stay in school!
*wink*