Please give me a chance

I am super sad now, can't even tell my feelings right now either. And I know I did try my best and I did study hard for Management, I spent so many days to study and take notes for it. Yet I screwed it up and I almost can get an A's. I cried when I saw the final result, and I just can't believe that. Honestly I am not showing off my result. Because I did put a lot of efforts on it, and I did pretty good in all the assignments. That's why I am so sad. I do hope that my professor will give me 3 more points. Please give me a chance.