This is true for many (perhaps most) of us humans.
Evolution has built-in a program to resist destabilizing (even positive) change that I call the drive for “homeostasis preservation”
I have known depressed people who were incredibly close to the exact healing protocol that they needed to live a very different (better) life. Instead of seizing the opportunity, they ended their life … that shows you how strong this drive can be.
This link loads everything I’ve written about this Homeostasis Preservation phenomena