You have not gotten the credit you deserve for something you worked very hard for, dear Sagittarius. That's a hard thing for you to deal with. You are not against stepping up and speaking your mind about the situation, but you may be afraid of looking pompous or like a braggart for claiming your rightful accomplishment. There is a way you can do this without coming off as harsh or conceited. Rather than marching in defensively and showing the anger you feel, you can talk about it softly and explain how you took great pride in what you did and that you want to be recognized. The fairness of it will be obvious.