Go to RVTravel.com. They have daily RV tips, a weekly RV newsletter, and lots of informative videos on YouTube.
There are lots of books out there that can give you information. Some dealerships even have courses on various topics. Lazydays RV in Tampa has seminars as well as courses. Go to RV shows - they often have seminars as well. The Tampa RV show in mid-January is very good.
There is a lot to learn. Maybe hang out with RVers. You can learn from them. Rallies are a great way to meet people and learn a lot as well.
When we were at the Crossroads factory service center in the waiting room they had a very general book on RVs. If you contact them, they can tell you where to get one. It is pretty basic, but for a newbie, it is probably very good stuff to know.
I hope some of this helps.
2012 Cruiser Sahara 330SS
2015 F250 Super Duty diesel