Congratulations and welcome to the family!
Boon docking is a matter of personal style, if you're frugal with the water(depending on tank size) you can last a week or more.
We stayed on some family property north of Steamboat for 9 days last spring using, generator for microwave and let the gray water drain into the pasture.
Your black tank is the biggest concern but if it's just you using it it should last quite awhile. ( we had DW, me of course, 3 girls and our son).
Forgot to bring in the trash one night and woke up to a brown bear having a feast at 3am.
Very scary! won't leave any trash out ever again. I was amazed the dogs didn't make a sound, I think they sensed the danger when it put a paw on the side of the rig,stood up and looked DOWN into the passenger side window!
I had the 410 pistol at the ready but still scared the c&!p out of us all..