Welcome then to the RV world of camper folks. I found a walkthrough link for you and wanted to add something all RV'ers do and that is to watch other RV'er set up their CAMPSITE. More so if they are new Rv'ers. YEP just like in the MOVIE RV.
Next to me, an older man was setting up his trailer as I watched. I did observe some interesting things. He used a CORDLESS Drill to lower his jacks, which I thought was cool.
Most campers use quick connect water hoses, WHITE for DRINKING, GREEN for Cleaning.
Welcome to the forum as I'm a Motorhome in waiting. Here is a nice video for you.