My own way~

I messed up my calculus exam again. But it was in my expectations. But how to say? Before the exam , I definitely realized that I had't prepared very well compared with previous experiences.I tried very hard to retrieve the situation, but It didn't work.The reason was that someone impeded me from carrying these plans. Usually, I can evaluate what I can achieve in a coming exam just by reviewing what I have worked already. For this time, I really knew that I needed more preparations . But I cannot put them into practices. The result is that I got a bad grade on the exam. I just want to do in my own way. I don't want anyone to interfere me , especially someone always talking in a high-sounding tone. I truly know what I want , and I will gain them no matter what!!!