Settling for a 'comfortable' existence isn't something that happens overnight. It's usually the result of a slow and steady erosion of who you're meant to be. Like a river wearing down stone, life's endless parade of 'responsibilities', demands, and disappointments can wear you down, soften your edge, and persuade you to conform to the "normal".
That's not what life is for.
Consistent growth requires consistently being uncomfortable and being ok with that.