I was really clueless sitting my test even though I'd been learning on and off for years, 3 tests were cancelled by the test centre for whatever reason & I had to cancel 1, so by the time I finally sat my test id had consistent lessons each week for a year in an automatic but still felt really useless and wasn't confident, day before my test my instructor had sprung it onto me that they use a sat nav during the test, why she didn't teach me independent driving prior to this I don't know! So on the morning of my test she showed me how the sat nav worked, then the show me tell me, literally 30 minutes before!! I was shitting myself and felt so so unprepared.
The week of my test I was still having to ask my instructor if I could go at a roundabout if it was busy & needed step by step to bay park parallel park etc 
Learning to drive never came easy for me, I had so many lessons.
On the test the examiner came out, he looked like a miserable old man, I thought fantastic just what I need! got in the car and asked me the show me tell me and off we went, but he was lovely straight away, told me to take deep breaths, nothing I did would surprise him, he had seen it all before etc etc.
I did not have a fucking clue about the sat nav and it really flustered me, too much to concentrate on and I had literally only been shown it that morning, so all the turn right 300 yards turn left 200 yards etc really confused me. I'm sat there trying to work out in my head what the fuck a yard was not realising I could just look at the sat nav arrow on the screen to tell me.
I just said look I'm sorry but I'm no good with the sat nav and he said you won't fail for asking questions as long as you do everything safely.
So each time sat nav lady said left 200 yards, I said to him this left or the next left and he told me not this one the next one and so on. can only imagine what a dip shit he thought I was 🤣
Got back to test centre, he said pull up behind the red car and turn the car off, I'm too busy thinking thank fuck we made it back, pulled up behind the red car but sat with my foot on the foot brake, turned to him and said put me out my misery, he said put your car into park first lol!
I passed first time 3 minors thank god as don't think I could do it again!