Have you thought about driving an automatic? They can be easier to manoeuver, they're impossible to stall, and you don't have to change gear - they're generally easier because you have much less to think about so you can relax into the driving more.
Also - just in case it happens again; apparently if there are two examiners in the car, the one in the back is actually assessing how well the 'front' examiner conducts the test and isn't concentrating on you or your driving at all - he's judging your examiner and not you!
I'm sure you'll get there with your driving - you seem to be doing better with every test
