I just passed 2 weeks ago, 4th time.
For me the difference was positive thinking and deep calming breaths.
First test not at all nervous but failed in one stupid thing
Second and third tests, scared to get my hope up, gibbering wreck, foot shaking so hard on the clutch that the car was juddering. Failed on 3 counts both times with 10 then 7 minors
Fourth time. I just kept telling myself I was a really good driver who was perfectly capable of passing this (stupid fucking) test as long as I stayed calm.
The hour practice before the test was the WORST I have driven since the very beginning. Me and instructor were both just WTF!
Told myself I was just getting it out of my system
.
My best tip is even if you think/know you have done something wrong move on and deal with what's in front of you.
Second best, if your feeling nervous and shaky or would like a min to collect your thoughts ask your examiner to let you pull up and have a sip of water. I did this twice including immediately after the dreaded emergency stop. It really helped.
Good luck and dont forget to come back and tell us 