Shining - I am also not a 'big group' GAL'er, generally - I'm an introvert - but UR is right about the isolation part. So my GAL'ing has been mixed...meditation classes (can 'share' as much or as little as you want with the class, but do your own thing, and so great for helping you deal with what all is going on in your life), yoga classes (again, you're doing your own thing, but with the class), DivorceCare group (lots of sharing there, but a great experience), biking, running, paddleboarding (all those things alone, generally), and one Meetup group meeting so far, which I really enjoyed. And any volunteer activities are really great too. You can choose to work with groups of others, or some are more solitary activities, but all have their rewards! You will feel better right away, when you get out. I can tell, Shining, you have much to offer the world out there!
Me 53, XH 57 M 20 (+1.5) years, no kids BD June '13 H moved out July '13 Confirmed long-suspected PA Feb '14 H filed for D Nov. '14 D March '15