It's interesting that you are a socially anxious traveler. What did you enjoy about traveling? Might it be possible to take some short day trips? Explore and maybe photograph your destinations? You said you don't want to volunteer but as you state you get to know your kids teachers, perhaps you can ask if there is anything you could help with in their classes? It could ease your mind being involved. I'm just shooting out ideas.

It was always interesting to me how many moms I knew that were so happy and excited their kids were starting back to school.....for me it was always sad. I thoroughly enjoy any and all time I get with my children.......but I've also always had many hobbies and always learning something new. The past several years my mental health has sucked all the joy from hobbies and it's just been a horrible decline for me. Not everyone needs to have or enjoys hobbies but most do. What one person enjoys is boring or lame to another. Maybe write a list and brainstorm ideas. Good luck!