I dont think im a narcissist but i have a lot of trouble thinking of an answer to this question. Everything Ive done including the wrong things ive learned valuable lessons from and they have shaped who i am. I try not to repeat my mistakes and i dont regret my failures.
Even if you were addicted to drugs you learned something from the experience and youve therefore improved yourself due to the past. Regretting your personal growth experiences makes no sense to me. Move forward in life dont dwell on the past but dont forget it either