Road Test help?

I have gone on my road test a few times and failed each time including this week. One of my problems is that I do not have anyone to practice with except for my driving instructor so I probably do not have as many hours on the road as a "regular driver" taking their road test would. I am great while I am just on one of my driving lessons and also practicing a few minutes before my road test appointment. My instructor says that I tend to freeze up when on the road test. I feel that I am not nervous but do drive a little more cautiously to show them I am a good driver and that they will p me. The real issue during the road test is not three point turns or parallel but what I call "technical stuff" that would only apply to the area I am taking my road test. Like pulling out of a certain street or stopping at or yield at an intersection. On the piece of paper they said they failed me because I did not seem to have control over the vehicle.