To calm down, you may take a lucky charm with you; it may be a necklace, a bracelet, a pen or any other insignificant small thing of a spiritual value to you. Always remember about the achievements you got studying and firmly believe they are going to help you. Try not to redo the tasks. If you feel unconfident, this is not a reason to cheat or to inquire from your neighbour: you both may be kicked out of the auditorium and the university. Follow the scheme from the easiest to the most complicated. If you tend to loose thoughts and feel defocused, that means that you have problems with time management and rational spend of the last. If it is difficult for you to absorb information at once, split it into pieces for you to learn each day. Carefully manage your time for rest and for work.
If you feel that you are responsible, you may allow yourself a sound sleep and a good rest. If there are points you didn’t manage to cover, there is no need to get stressed already, you might be lucky not to have these questions at your exam. Do not exaggerate and play around, be natural and sincere with the committee. If during the exam you begin to get stressed and commit more and more mistakes, it is a sign that you didn’t have enough rest before. There is no need to focus on the same thing all the time, you may have a rest by looking away from the committee members, for e.g. into the window to recollect your thoughts, but do not do it too often; the examiners might think you are distracted or you do not know the answer. Do not try to rush, for not the speed but the quality is the deciding factor of your grade. Try to block the impulses and act coherently and accurately. It is very essential that you focus on what you do and nothing more. Try to define the amount of time you are going to need on every task. There is no need to get nervous, no need to be stressed out. Calm down, have a good rest and come to an exam with fresh head and light smile. Disaster will not happen if you are not the cause.