Fake it till you make it.
I have 2 significant comeback moments which I would also call turning points.  When I finally chose to stop using drugs and alcohol. (Thank you Bill)  The other was pretty recent when I was diagnosed with ADHD. I had lived my whole life without knowing it.  Adult diagnosis and medication helped me realize I wasn’t less than in the brain department, but different than.   Getting more familiar with why my brain functions as it does has given me a new outlook on the old me.  I feel like the me, who was in there all along, is allowed to come out and play.