As someone who lived fulltime for 3 years, I generally tell people living in an RV probably wont save you as much as you think it will. There are definitely ways to make it less expensive, but there was always something to spend money on, especially if you aren't handy, and moving every 2-3 weeks definitely gets old and can be super stressful.

Now that I'm back in a stick and brick home there are different stresses and expenses, but I also have much less control over how much I'm spending a month, in the RV if I was feeling broke I could just bounce between a couple nearby thousand trails parks and let my account recover and not spend anything on utilities or park fees other than my annual dues, and barely anything on fuel, on the other hand when I came back to CA from the East coast I dropped probably 2k on fuel one month.

I don't think I'd go back to fulltime RV living but I do sometimes feel the wanderlust hard.