AITA for complaining about the note I took?

In my school we have the Poetry Festival where we give presentations, but I helped to do everything we did on the day of our presentation, including cards, scenarios ... So my colleague who would give the note about it doesn't like me and gave me " b "because of that. Other people who didn't help me so much. I went to the teacher complain and she said I took this note because I complained too much in rehearsals, but did not give up and went to the direction of the school to solve and agr has not been resolved. So I was stupid to have complained more or she was unfair to my grade?

(Obs: I'm from Brazil, so if something is wrong it was the translator.)