Lots of really good advice here that may be overwhelming you, just remember everyone you've seen driving a trailer had this same experience so lots of success out there. In other words not as hard as it seems with a little practice, go at your pace no one else's, first few trips out make sure you have a plan, the how to list of things is highly recommended, and most of all when backing up if your not sure as suggested just get out and look.
I've been pulling trailers off and on for 40 years, many of those boats, with a travel trailer when backing harder to see around and I camp by myself about 1/2 the time so I get out a lot just to be sure, better safe then sorry.
Enjoy the journey, I know you will
Steve