CESL Stress

In my special case I feel stress when I have something to do. When I prepare for any exam I do not feel stressful. However, when I go to my class to take the exam I feel stressful. On the other hand, TOEFL drives me crazy and is stressful even if I start to study it. Moreover, the listening part is the most stressful part on the exam. Then I become a little bit stressed when I move to the other parts. Also, there is a big stressful point on the TOEFL which is the time. On TOEFL I face many reasons that increase my stress such as the level of questions and the time. In fact, the stress makes my grade worse than what I deserve. Finally, I should be stressed less on my exams because that will improve my grades.