2 close: Yes these scenarios of you practicing the "patter" back to your FIC instructor are a bit artificial, but a very necessary part of the course which you will see the benefit from in the end.
A little story to give you confidence:
Once I had completed my course with Firefly Bob's Dad and (somehow) passed my test, I had the problem of taking my first real student aloft. As I had had a job agreed from well before I started my course, I rapidly found myself being conducted from my home to the airport in my first student's luxury Jaguar! During the ride, I learned that he wanted to practice circuits and landings, had flown a few, but hadn't managed to land it himself yet. I started to get worried. "At what point do I take control off him when he can't land it?" I thought. "I have practiced every aspect of circuit flying, discussed it all at length, but never actually practiced taking over control just before it all goes pear shaped".
Eventually we arrived at the airfield. The club aircraft was extracted from the hangar, fuelled and my student did an excellent "Check A" We got in and started up - again no problems, but I was really getting worried and trying my best not to show it! We taxied over to the runway:"There is nothing for it now, I suppose, here we go." I thought as studend executed an excellent takeoff.
As we proceeded around the circuit, I got more and more worried about my situation, but we were soon on final approach, nicely set up for the landing. On we flew, lower and lower. "Now's the time for the flare," I thought, but nothing happened. Eventually we were getting very close to terra firma and without thinking, found myself pulling back on the control column, and opening the throttle. The aircraft touched down heavily on its mainwheels and bounced back into the air. In the climbout I debriefed my student as to what he had done wrong and the lesson continued without problems. My worries had evaporated and a few months later said student had a large grin on his face when, as a result of my work amongst others he opend an envelope from the C.A.A. containing his PPL.
You see, sometimes you don't know what you are learning on these FIC courses, but they have stood the test of time. Relax and enjoy it!
P.P.