I passed the extended test yesterday morning at the first time of asking but make no mistake it is quite intense and I was driving for well over an hour and 20 minutes on all types of roads including dual carriageways (twice) and backroads with a national speed limit. Your examiner will be watching you closely to make sure you are a capable safe driver so don't let nerves get the better of you and just go out and drive to the best of your abilities and if you're safe and show that you can handle all type of roads from quiet little country roads to multi-lane roundabouts you'll be fine. Be confident but don't try to come across as over confident.