I would say take it easy don't get stressed up. My Instructors stressed that when under immense stress, pilots tend to make mistakes.
Relax take it easy just like any other flight.
Do your checks out loud.
Be prepared for anything. I left my flashlight back in the breifing room and when the CFI asked for it he explained to me that we have to be prepared for anything even if we are only day VFR rated.
All the best! You can do it!
btw: Let me know if you logged the flight test as PIC or dual. Kinda forgot to fill that in and lost contact with my instructor.