Three years into diagnosis..

I was diagnosed three years ago (69 in a few months) but was aware of subtle symptoms long before. Worked in a high powered mentally taxing career and finally had to give it up (kicking and screaming) as told to me by my Dr. My whole life was my work from a very young age. It was my identity, my social outlet, my sense of accomplishment, etc. etc. etc. How do you replace all of that?? Because I know I am slipping, I am awkward and shy in social situations. I do not have any blood relatives but a small circle of friends that are my adopted family. Have done all the legal things to prepare for the inevitable, (of course lol), but now what??? .. ... I just feel like now I am just passing time.... waiting for ... ?? I have always been driven, and now cannot seem to get off the couch. Not great at initating being social but will be social when asked. Not feeling sorry for myself... just stating facts. Started to see a therapist but once a month for 45 mins does not seem to help a lot. Anyone else feel similarly? How do I adapt?