Sometimes learning by the seat of your pants can be expensive!
Novice next to me a couple of months ago lost an awning.
When you have been doing it a while, it is easy to forget that EVERYTHING is new and uncharted territory. Right hand turns, backing up, electrical and surge protectors, winterizing, emptying black and gray tanks (dos and don'ts).
The place I purchased my last camper at had a 2.3 hour seminar. If there is anything like that - TAKE IT.
Make lists of things to check before driving away!!! Have someone be the "double checker". You'd be surprised how often folks drive off with the water or electric still hooked up.
READ READ READ the forums. You will quite possibly save yourself some real money by learning from others mistakes or misfortunes.
Safety first!