Was this all the riding you was doing at the time? A lot of peoples confidence is only built by regularly riding (on their own) and assessing themselves after (which I still do now).
If you was riding another bike at the time you must have been scared of the strange beardy man in you mirror following you around all day. That was part of my problem, thankfully most of his effing and jeffin was towards the other person doing the training.
Edit: Would like to add that I got a clean pass on my full test. Was told to hold onto the test score paper cos the tester was a mean mother trucker.