I'm assuming that the change your referring to has been a big one. Certainly moving to contrastingly new locations changed mine. For example, I was born and raised in bleak old England. In 1951 I migrated to Australia which, back in those days anyway, was a real contrast to what I'd been used to.
In 1963 I moved to Papua New Guinea and lived on the edge of the jungle. That was a big change. Then in 1971 I moved to New Zealand. another change.
But the place that really sticks in my mind as a turning point in my life was a year as an Antarctic expeditioner on Macquarie Island. Complete isolation with nineteen other people was only part of it. Living in such an environment leaves its lasting marks upon most people, I suspect. It certainly did on me.