Welcome to the Forum! You sure have come to the right place to educate yourself on RVing. There are threads above in drop down boxes on "Fulltiming", "Towing", Work Kamping" and anything you might think of.
I would suggest to you to get a water pressure regulator and water filter. CGs (camp grounds) are notorious for having high water pressure and not always the cleanest water. You can get them at Walmart for under $25. Will keep your plumbing safer and your shower cleaner.
Where are you looking at? I assume a RV dealership. Get the best deal you can. Make sure there is plenty of storage in the RV for everything you need to take with you. Make sure the dealership shows you how everything works and video it so you have it for later. CHECK the RV carefully.
When you get it, do your first camping in your driveway. Why? Because if you forget anything you can just walk in the house for it. Or a CG close by your house. It's a good way to learn.
Mostly though, have fun and enjoy your new lifestyle. Lynne
Retired January 4th, 2018 Lynne & Jerry RVM 105
04 WBGO Itasca Sunova (Miss May) Blue Ox Tow Bar
15 Equinox (Noxi) 18 RAD Mini e-bike, 04 Tracker