Hello,
I am yet to do mine for 2019 entry but I have completed the exam before. I would say definitely spend the last few days getting familiar with the layout of the exam (which you have done) and also make sure you control your nerves! The exam is basically a test of nerves so if you can prep yourself beforehand and motivate yourself, you'll feel a lot more comfortable during the exam. Make sure you do a mock closer to the time to endure the full 2 hours.
Good luck!