I'm an extreme introvert. For years I thought shy was just another name for it. As it turns out, they're different and I'm both. I worked in the same place for 20 years, looking back I suspect that was more because I didn't want to "start all over" someplace else. I was comfortable once I got to know everyone and I made friends. But when I retired, it was easy to pull away. I've been retired for 13 years and these days I'm happy to "hibernate" at home.