Just remember if you do forget to pack something, Walmart is never far away unless you are in Siberia, lol.
As you gain experience with your rig and your travels start to become longer in days on the road and farther from home try to determine what items you can leave in your camper to shorten your "get ready time" before departure. From cookware, linens, bathroom supplies, and bedding, to personal clothing and footwear. What my wife and I have done is take a lot of our older clothing that maybe we would've given to say Goodwill, and put it in the RV to leave it there. Same with cookware, old pots, and pans went into the RV. Bath, dish, wash, towels, same thing. Doing this saves a lot of time, but also we didn't want to spend more money on "camper" needs which would just add another layer of expense on to owning a camper.
The quicker you can hit the road without tons of packing, and then unpacking when you get home, the more enjoyment you'll have with your rig. And, it will inspire you to be more spontaneous with decisions to "hit the road"!