For campgrounds around you, try RVParkreviews. There are other online sites with campground reviews and locations, I am sure other people will chime in.
Also ask here on these forums! People here can you give very updated info about routes - heck, someone here probably traveled where you are thinking about last night, lol!
I do recommend "driveway camping" at your house for one or two weekends to figure out the basics of what you need. Then I would recommend a weekend camping trip about 20-30 minutes away, so you can return home to get what you need. And try to get a campground near a shopping center / Walmart so you can get supplies.
So, after buying all the stuff you think you need, you will spend the next 10 years cleaning out the camper of the stuff you don't really need! lol!
Then.... Go! Plan your trips - I like to ask here on these forums, and use a website like RVParkreviews for planning. On this forum I give a description of my truck and camper, destination, and possible routes. Usually a bunch of people give up to date replies with road conditions and suggestions.