Been driving class 1 truck all week for my lessons instructor tells me my driving is fine,and my reverse manoveure is good as well.Ive been practising the reverse in the instructors yard and its bang on.Test day was today I asked alsorts of questions about manoveures asking and double checking what I was doing etc.I got to the test centre and believe it or not I wasn't nervous lol.I did the uncouple and recouple dead easy then it come to the reverse manoveure where I balls it up.The reversing bit of the track was like 3 times bigger and I did the same as I did in my lessons and I knocked a cone over going backwards.I was going mad.I said is that a fail to the examiner he said yes.he said I could carry on with the drive which I didn't see the point I just wanted to go home.i felt really deflated.So lesson learnt.Gonna rebook my test for some time in September.I didn't see the point of carrying on with the test if I had failed already .