Loss of Identity/ Sense of purpose

I was diagnosed with BP1 at 44, and am about to turn 50. My life is not what I imagined due in large part to Bipolar.

Currently I’m on disability after losing a 25 year career in Sales at F500 companies. My last job before losing employment was a VP of Sales.

I was fired from each of my last 3 jobs due to Bipolar.

My whole sense of identity and sense of purpose has been lost. I don’t know who I am without feeling confident, smart and successful. This causes me to feel a great sense of grief and loss.

Has anyone experienced this? How did you rediscover new parts of yourself and let go of the “old you”?