Apparently the dealership did not explain much of anything to you. The generator, and how and what it runs should have been part of your walk through.
You likely would find it helpful to stay at an rv park for at least a month, hopefully you can find an experienced neighbor who can help you understand how everything ties together. If not, you may want to have a local RV tech come out and walk you through all the basics that should have been covered at delivery.
To find spmeplace to stay initially try using the online apps to locate places.
rv parkyThis will let you browse campgrounds and check pricing pretty quickly. And you can scroll the maps to compare areas.
Get out of Boston if possible and it gets much cheaper and easier, an example
3 pondsGood luck.