idkwhattoput if its like REALLY close (in terms of time) to the exam and it helps take your mind off things then there's no problem in going, im gonna relax for like the last 3 days and go back to soccer training myself. exercise is also really good for the brain so yeah if anything it could improve your performance on the day. that being said, however, if you're gonna go make sure you cover all the content you need to before, otherwise it'll get too much to do before the exam. good luck
