Hello! How incredibly fortunate you are to be able to do this kind of travel at your tender age!
When we started with our first RV in 2002, we bought a book at one of the big booksellers (no longer have it, so can't give you the title) that was basically A-Z on RV'ing----it covered many of the topics you are asking about, and more. We would strongly suggest you pick one of these up and read it through. It will give you a good start on general information.
We'll leave the big guys here to help you with some of those other things.
Good luck and drive safe.