I bought my first 18' car trailer when I was 19 years old. I had never driven or backed up a trailer prior to that. I learned quickly that going to a large parking lot at night and practicing backing maneuvers was a worthwhile activity. Take your time, make small steering adjustments, and take your time. Even if people are watching and waiting - take your time. It's really tough when your trailer is empty, and you can barely see it behind your truck. For most people, having a trailer hooked to your rig is a situation you only experience a handful of times a year. So, it takes a while to "get it". Fortunately, it's kind of like riding a bike, once you "get it" you pretty much have it.
