I know that feeling. The first time that I backed up any trailer, it was at work (a summer job) and I had to put the trailer between trees, while working the clutch of the first manual-transmission vehicle I had driven. Many years later I rented a tent trailer and the first time I backed up that trailer it was into a campsite with the family in the closest site sitting around the fire watching like we were the evening's entertainment.
The best part is the confidence that comes from finishing with any degree of success.