Let me first say that I have a Dutch driver's license, as well as a USA (Cali.) license, I got my dutch first (at 18 the earliest possible here) and my Cali later (100% score) I have also lived in the UK (albeit while driving my own LHD car) So I know a fair bit about your traffic and tests.
I also remember how stressed I was about the first time (luckily passing) the examiner (f) was very strange, at one point she asked me to take my foot off the accelerator, and she pushed it to the floor; "it *does* work" she remarked. (exam cars have dual control btw)
So I said to her: "why didn't you ask me to go a bit faster?", as my instructor had spent the last couple of weeks getting me to drive slower
...She did let me pass, probably because I did the rest well enough. A driving exam here is about 30mins and includes several special ops (reverese parallel, 3point turn) so it requires you to be prepared for a lot of stuff. She also made the error to have me parallel-park twice! Good thing that was one of my favorite manouvres.
It's fair to say that no two people should drive exactly the same, no two examiners will either, so how *do* you drive?
-within the given rules,
-adjusted for traffic conditions,
-prepared (for the worst or anything traffic or the examiner can throw at you)
-in complete control of the car
-totally aware of the situation
at the same time being:
-intuitive (not a robot)
the latter are particularly hard in an examination situation. Some of the first you can learn or practice, others some people will never learn. I am pretty sure you can pass without being perfect, or while being nervous.
BTW In the netherlands you can have your instructer join you on the exam. The test is very strict so many people fail, and your errors will need to be corrected later. It may also help, especially when people are unnecessarily nervous. Lastly, the examiner can confer with your instructor after the test.