Hello Craving alone: I noticed this is your first post here on MSF. Welcome to the forums.
I hope you find them to be of benefit.
I think many of us, here on MSF, struggle with some level of avoidance. I know I certainly do. I'm elderly now & pretty-much just keep to myself. But for years I, like you, held jobs that required a lot of interpersonal activity. And I also managed until it all unraveled at around age 50. Since then, I have become increasingly solitary, by choice. I just prefer to keep to myself.
Anyway, I'm glad you've found your way here to MSF. There's a lot of support that can be available here. My best wishes to you...