G'day Mate.
A lot have the problem, but not many admit to it, they usually blame "radio interference" for their crashes, or not so pretty flying & landings, when it is usually thumb interference, & nerves.
I get nervous too, especially when I have to maiden a new plane for someone else, which I do a lot, but I just check everything to the best of my ability, breath deeply, & trust myself, I'm all I've got to help me.