Do what makes you comfortable, but there's no magic pill to teach you rving. We bought a trailer then immediately made a trip to a town two hours away. (We camped at a KOA thinking that we'd need help, but figured everything out ourselves.) Having succeeded at that, we took off a couple of months later on a 3,000 mile round trip to the northeast (from Texas.)
Just take a credit card and start your travels. It's not like you're tied to a dealership and a warranty. You can connect to this forum from anywhere with an internet connection or a phone and computer. For your peace of mind, buy an rv roadside assistance service just in case you need a tow or a mobile mechanic. Then just take off and have fun.
Congratulations on your purchase and welcome to the forum.