You still have the idea that you are to be perfect in the eyes of the world. Since you have adopted the eyes of the world, you expect yourself to be perfect in every page of your life. In so doing, you impose upon yourself. You impose markers that you cannot fulfill, or cannot fulfill all the time, or cannot fulfill without great wear and tear. You don’t have to have A+’s all the time. You don’t have to have A’s or B’s or even C’s. Better no grades at all.