<p>This year, I learned five ap subjects by myself and took three ap classes in my school. But I couldn’t prepare enough for two of the subjects(AP Macro/Microeconomics) which I learned by myself. Recklessly, I registered these two exams in the last month, so I need to take them on the May. Do you think I can cancel the exams? If I would cancel, is there any detriment for my school? If I would take macroµ exams and get low score, is there also any detriment for my school?</p>