I got my report card recently. I feel like I can do even better if I try even harder. I'm setting new expectations and goals for myself. I want to get "High Honors" next trimester.
Grades can be important depending on what you plan to do in the future. I say that because you are being judged based on grades in a lot of cases. You have to keep good grades or people will judge you poorly. People think highly of kids with good grades and not so highly of kids with bad grades.
In the end, it's fair to judge kids based on grades. I think a lot of times grades are a reflection of the amount of effort that you put into a class. I hope to be judged well now and in the future.