Hi whiteysax - I understand how it can be overwhelming. If you are used to living in a house (where you flip switches and stuff just comes on, and the power company sends you a bill every month) then the complexity of an RV power system can be a bit daunting.
From what you've posted, I don't believe you have much electrical experience. My advice would be to learn the fundamentals (difference between AC, DC) and what the different parts (inverter, charger, generator, etc) do.
There are some pretty decent intro to RV courses - or just strike up a conversation with someone in a campground with a similar vehicle and get them to walk you through it. Most of us are glad to show off how much we know! Before long, you'll be the one teaching other people. Good luck!
