Welcome to the forum and congratulations on the camper!
Like Janet H suggested, find a place to practice, take your time and don't let yourself be rushed. Accept the fact that the first few times won't be pretty and don't get frustrated. We all started there and improved with time and experience.
The only other thing I will add which has been a benefit to me, is when backing, steer with your hands on the bottom of the steering wheel. That way the trailer steers the same direction as your hand movements. If you want the back of the trailer to go left then steer left from the bottom of the steering wheel. When you steer from the top of the wheel you have to steer opposite.
Good luck and happy camping!
Glenn & Beth (Dad & Mom)
David & Audra (16 year old twins)
2006 Dodge Power Wagon (Adventure & Tow Vehicle)
2006 Rockwood 8281SS (Home away from Home)