Welcome to the forum and congratulations on the TT. You guys are going to have so much fun!
There are a lot of good people here who will answer all your questions because we were all new at some point. We all had a lot to learn and people with experience are one of the best sources you will find. Old threads here and YouTube are also valuable to you.
Don't be afraid at CG's (campgrounds) to go ask other campers who have a rig like yours. Just explain that you are new and ask how long they have been doing this and do they have any advice. Some you will use and others maybe not. You'll get there.
I would strongly suggest a pressure regulator for your water hose as well as a filter. CG's are notorious for having water pressure higher than what your rig's water lines can take and you sure don't want a pipe leak. Also, the water is often harsh, rusty, or has other items in it you don't want it your lines.
Have a great time with your new rig and time with your family. Lynne
Retired January 4th, 2018 Lynne & Jerry RVM 105
04 WBGO Itasca Sunova (Miss May) Blue Ox Tow Bar
15 Equinox (Noxi) 18 RAD Mini e-bike, 04 Tracker