Tommy, what rout are you taking after your stop in Memphis?
As you said you are new to this "RV'ing" stuff, hearer are a list of apps and websites that will make things easier and more fun. This is my starter list of apps.
Here are some tools to help you plan your trip. RV Parky is a good tool to find places to stay and plan routs. http://www.rvparky.com/
Gas Buddy You can down load it from your app store. Find cheap gas and you can record your gas/fuel expenses. You can look ahead and see what the prices are where you are headed . It helps plan fuel stops.
RV park reviews is a good tool to see what other people think about a place. http://www.rvparkreviews.com/
NPS you can look up things to see/points of interest. https://www.nps.gov/index.htm
You can also see what campgrounds are available in the different parks.
Also look at getting a pass and if you are 62 or older definitely get a Senior Pass it is a $80 Lifetime pass that covers everyone in your car. https://www.nps.gov/planyourvisit/passes.htm
You may have to wait till you get to your first park they have a great way to record the parks you have ben to. It is called a Passport, you buy it in the visitor’s center, it kind of looks like a Passport but you add stickers and stamp the date and time you were at the park.
One other thing you need is get a Passport America discount card. This is a tool to help campgrounds fill empty spots during the week or slow times. Each campground sets the time and discount but most times it is 50% and some places 3-4 days.
We saved about $450.00 last year. I think I got my $44.00 back. http://www.passport-america.com/
For navigation, I highly recommend CoPilot. We have used it for several years and it does a great job. The big benefit is you can down load maps when you have Wi-Fi and it doesn’t use data. I have it on the phones and on my tablet. The tablet gives a bigger picture to see and follow.
I like Yelp when on the road to see what places there are and to get reviews, see menus. Who wants to drive 2000 miles to eat the same fast food stuff you have at home.
Oh Ranger, is a park locater for those hidden gems like Antelope Island in the grate Salt Lake.
Rest Stops, is a good app. You might look at the apps for all the big truck stops Pilot Flying J, Loves, or get the ALLSTAYS Big Truck Stops.
Hearer are a few more about the Fort Worth area. Don't miss the Long Horn Cattle drive when in the Stockyard. Yes Fort Worth has real cowboys on the city payroll and their job is to drive cattle for the city.
The National Cowgirl Museum and Hall of Fame. Is a interesting place.
Hearer is a link to things in Down Town Fort Worth.
That should give you something to help plan your trip.
Any questions just ask.