One final thought... don't worry about being clueless because just about everybody on this forum started from that point.
I think you really learn by doing. When you buy a used one from a friendly owner or maybe a service-oriented dealer, be sure you get a thorough walk-through where you get hands-on time to turn things on and off. Learn as much as you can about how RV batteries & electrical systems work. Also the fresh water and waste water systems. Read the B manufacturer's manual (you can usually download for your model year from the website).
There will be lots of things you want to know about your model, like:
- how much do my tanks hold and how long can I go without dumping? (The gauges are notoriously unreliable.)
-How do I dump - in other words, how to open and close the holding tank valves for dumping. Does it have a macerator and/or a gravity system?
- what systems are powered by only 120 power or the generator? What runs on propane? What runs on 12-volt from the "house" battery or batteries?
-Where's the propane tank and how do I refill it?
- how tall the RV is (before going under a low bridge - more of a problem for bigger RVs, but remember that you have an air conditioner unit on top).
-What needs servicing and how often? When was it last done?
People here often suggest that before making a trip, try camping in your driveway or a nearby campground to figure out what you know or don't know.
You can also attend owners' rally groups and meet people who will be glad to share their knowledge. And there are online forums where you can ask questions.
