Love this. I've been trying to re-find a study done (I think in the U.S. near Chicago) where they tracked people who relocated environment and that definitively shaped their success (or failure).

For example, want to get fit? Start hanging out with people who are fit and go to the gym a lot. You will end up adapting to their behaviour patterns. Atomic Habits also talks about this in terms of drug addiction and recovery.

Repetition rewires the brain!