We are new also. Had a camper for 2 years now but limited trips. Going to make up for that some this year.
I was nervous about backing up. I practiced a little before our first trip and then just sucked it up and did it. I was really antsy about other "experienced" RVers watching me back in. Well, after several trips now, I can say that those guys with the big fancy rigs and the maps on the side of the camper that are almost full aren't perfect either. They had to go in and out several times also.
So don't be intimidated, just take your time and ENJOY. You will learn something new on every trip you take.