Past Circumstance Question

I’m working on changing my past in regard to a layoff that happened many years ago. I have a positive story I have created around the event and clearly see the benefits that came from this experience. At the same time, I can tell I am not viewing the circumstance as neutral. I’m thinking positively about a “bad” thing that happened. What can I do to make “I was laid off” be the fact that it really is?