Help...Loading a camper solo!

The key thing, at least in my experience, is to take your time, don't get in a hurry, and get rid of any distractions around you. I also try to use the same process each time I do it so I don't forget to do something. I don't use anything except my side mirrors as well. I get in and out of the truck several times to make sure everything is lined up etc. and that's really all there is to it.
It was definitely a little intimidating the first couple of times loading it but with a little practice it gets easier.