2Close,
I think most people go through this at various stepping stones along the whole pilot training process. I remember thinking on my first PPL lesson 'how the hell am I going to fly this bloody thing on my own!'.
You will find, like anything as you move through the FIC it will start to slot into place, with regard to your flying and the patter. I found mutual flying of great benefit. I still do it with FI students, its a lot of fun. I particularly like doing fully developed stalls, and 'forgetting' that I shouldn't be applying a boot full of rudder at the stall
, to see the guy in the right hand seat go green
.
When you have done your test (which you will no doubt learn alot, I did) you will develop your own style using what you have been taught as a framework, to get the vital points across. After a while you will be flying the aircraft with about 10% of your brain, leaving the other 90% to do other things
.
Enjoy it, it really is a lot of fun.
Cheers.