Google Backing your RV. Start with a video called
The Scoop Helped me quite a lot - taht and lots of practice. You will get it.
I pull forward while scooping and look through the driver side window at where the back bumper of the TT is in relation to the right side of the entrance to the spot. You can see this if you are doing the scoop. A spotter with a walkie talkie standing and observing on the left corner of the spot - where you can't see is helpful, but if the entrance to the spot is wider that your TT, then there should be no problem.
Concentrate more on where the slide out side of the TT is in relation to the power pole or trees and if you will have enough room to put out a slide if you have one. I always put my TT inthe right side of the spot to give more room for the awning and chairs, fire pit etc.
My wife was much like yours, but I taught her how to guide me. I told her it was a two person operation and that somehow clicked.