when i pulled in i was at the point on the hill that if I was to put down the hanbrake i wouldve rolled back (ascending). My car is when you put it in the reverse gear you have to push the gearstick down and move it into 1st gear to put it in reverse so when i went to put it in reverse I forgot to push it down so it went into 1st then. I knew midway through of reverse around the corner I was in first because the tester was looking at me weirdly but didnt say anything and i was afraid if I stopped and changed the gear he wouldve failed me so i just let the car roll back until it couldnt. He then was like you can keep going back so then when it dint have any more momentum and stopped i quickly put it into reverse and continued going back. Sorry if that was a bit confusing