Welcome to RV'ing. Sounds like you are jumping in to the deep end. The good news is you are asking in the right place. There is lots of info on line concerning RV'ing in a 5th wheel. Lots of videos on You Tube as well. If you live near Seffner, FL you may want to consider visiting Lazydays and taking their RV technical classes.
http://lazydays.com/explore-lazydays...-training.html
http://rvingwithmarkpolk.blogspot.co...se-titles.html
Go to You Tube and search for How to RV.
Where are you located in Fl? I live in Jupiter on the east coast. I'm in Colorado and on the road until October. Then I'll be back in Fl.