I passed my test last September it was my first test in 13 years.
I found an early night the night before, breakfast the next day. I also used Bachs rescue remedy and i took a deep breath when i got in the car and told myself ‘well im here now lets get on with it’
If you make a mistake, put it out of your mind, do NOT dwell on it as it causes a domino effect and its a lot harder to bring your concentration back after that.
Stay calm and confident but not cocky and you will be ok.