Dreaming of being unprepared for an exam means you are stressing out about the obstacles that lay ahead of your life. It could be a work project that you have been procrastinating on that brings back the bad memories of your last minute studying for exams. In order to minimize the dreaded fear is to keep starting on the same project until you finish, don’t think about finishing every thing in one big swoop otherwise you will continue the vicious cycle of procrastination.