Initially, if one questions whether the personality can change, the most expected response would be no, or at least, not to a large extent, and this is due, in part, to the fact that we all know many people, and that very few people change in a very significant way, their way of being.

Longest Ever Personality Study Finds No Correlation Between Measures Taken at Age 14 and 77

https://digest.bps.org.uk/2017/02/07/longest-ever-personality-study-finds-no-correlation-between-measures-taken-at-age-14-and-age-77/

New Insights Into Lifetime Personality Change from Meta-Study Featuring 50,000 Particpants

https://digest.bps.org.uk/2018/01/09/new-insights-into-lifetime-personality-change-from-meta-study-featuring-50000-participants/

You're welcome.