Is study happiness or stress?

I've just finished all the exams in both universities (in one final exam; the other is mid-term). Frankly speaking, I've been so stressful reviewing the lessons for the exams. Even when I am sleeping, my brain is still working. Sometimes I even dream of taking exams and the situation during the exams were so nervous that I could not answer the questions. It sounds really ridiculous, but it's true for me. Sometimes, I tell myself not to work so hard but there is always pressure. The pressure is not from my parents or someone else; it's from me myself. In taking exams, I'm not afraid of failing. I'm only afraid of being lost behind others. That's the pressure I put on myself, and no one forces me. My mother warns me all the time whenever she sees me read book all day long.

We usually feel that schoolwork is tough, and school life is difficult. Although I experience this tough situation myself, I believe that this stress will be doubled in the workplace after school. At least we have friends at school whom we can chat with without much protection. But in the workplace, the people around you are mostly competitors. When you are stressed, it seems that you don't have anyone to talk to. The office politics is pervasive.