I should graduate

I should have graduate this semester but unfortunately there's just 1 unit left which I have failed to get competent. Should I have felt regret or shall I say I did what I could for this unit but still the same result which pissed me off. More than 80% of my classmates are competent and I felt happy for them but to me it's just a no! Most of them, they got a supplementary however its just me and few friends could not. Finally my classmates who got supplementary get competent! *sigh*. I can prove that 100% the lecturer is such an 2 face person!. Whatever~