I see you have posted a few times, so welcome again and congrats on your new aframe!
One suggestion is to do at least one "driveway campout" before your big trip in October. Cook in it, fire up the water heater, wash dishes, run the AC/furnace and sleep in it just to become familiar with all the utilities. This is also a good way to find out what you need to pack along and make the experience more like home.
I particularly like the suggestion of taking your new rig to an open parking lot for practice backing. You may want to practice hitching up as well.
One important thing to remember, when you set up to camp, get your camper level (side to side) and, after you unhook, level front to back. Camping un-level can cause the refrigerator to not work properly. The stabilizing jacks
are not for leveling. Most of us have 1x and 2x boards around and they'll do the trick under the wheels. Something like a 4x4 board can be used to chock the wheel for safety.
I imagine your mpg average will be less than normal while towing your new camper. As you become more comfortable and familiar with the nuances of towing, you may
Good luck and have fun!