once it's (the trailer!) going the right way, use the steering wheel to just kind of follow the trailer.
It's directions like this that are crazy making to me. "use the steering wheel to follow the trailer"? what in the world does That mean?
Anyway, I've no experience with trailers, but I used to get sweaty palm just thinking about parallel parking.
Like drewdad said, I finally had the opportunity to practice myself in a wide open space, using cones I set up. No one there to offer "helpful advice" and figured out exactly where a specific part of my car was supposed to be by sight when I was supposed to crank the wheel to get into the space.
Now, I can parrallel park where my vehicle slips into the space like a glove.