Best bit of advice I ever had was "Don't fail yourself". Got me through a pretty awful combined Nav/GFT test. The lowlights:
* Dreadful diversion on the Nav. I must have been 45 degrees off. Only got away with it when I saw the QE2 bridge on my nose when I should have been crossing the Thames about Gravesend. Fessing up to the Examiner, and correcting the mistake did the trick though.
* Changed my target field 3 times while plummeting down on the PFL
.
* Did a go around on one of my landings. A direct result of almost total loss of confidence after 2 hrs 20 mins p*ss poor flying. Strongly recommend not doing the 2 exams together.
Having described these disasters to my Instructor afterwards, he said that I had passed because I had showed evidence of using correct judgement in each case.
So repeat after me:
DON'T FAIL YOURSELF