TBH, I think the "go from yuppie to hippie and it all becomes rainbows" is generally a false narrative. Money does often buy happiness. That "$75,000 a year is peak happiness" thesis does not replicate, like much of the social sciences. [1]
I'm sure your new lifestyle is suitable for you and makes you happy. But I don't believe that's generalizable.
[1]: https://archive.ph/20210127035328/https://www.vice.com/en/ar...