We are constantly changing. There's a problem if we are not. We should be learning new things and gaining greater understanding and if we are fixed to the knowledge we thought we once had, we never grow.
So we are constantly reinventing ourselves.
Sometimes by choice, think about how your musical taste might have changed over the years?
Sometimes by force, the arrival of children, a divorce, a death. We are forced to reinvent our whole lives, even though we had intellectually nailed that life as our permanent one.
You are allowed to reinvent yourself as often as you need. As I wrote here, these new beginnings slip by unheralded. You just keep marching forward and look back to see you climbed a mountain.
I saw this quote yesterday, and I think it's the most positive reason to reinvent yourself as you need to. "If you do not swim with the person you are becoming, you will drown under the weight of who you used to be".
If you don't like an aspect of your life, including who you are, work to change it. Reinvent yourself, follow that ridiculous dream, make the world the way it should be.
"At its core, reinvention is inextricably linked to hope: the hope that we can find another way, take another shape.” ― People Change