You sound like you're doing well (considering the sitch). Have you ever seen 25's list of GAL activities? There are lots of things to do that don't include restaurants or alcohol! Do you like to cook? What about a cooking class? You may be able to find one that is kosher and maybe one to do with your kids.
Day trips to places in your area that you have not been to. When I was "home" this summer I did a lot of exploring with my D17. Waterfalls, lake shore, state parks. We did include some Diners, Drive-ins and Drives restaurants too but you could pack picnics. I couldn't believe all the beautiful places right around where I grew up that I had never seen. You can probably get a book for your state "Hidden State" that has all sorts of things that aren't popular tourist attractions. I do this when I go on vacation to different states.
Volunteering? Habitat for Humanity, homeless coalitions, youth sports, local schools, your place of worship, with a running group to help at races, humane society...whatever else is close to your heart (can also include kids in these).
Photography, painting, pottery, kayaking, paddleboarding, archery, skeet shooting, biking, museums, art galleries, check out a new local band (you can drink water!), festivals, karaoke, snowboarding, gardening, rebuild an old classic car, read a novel, woodworking...
Think about somethings you have always wanted to try or sound interesting. They don't have to take all of your free time, for example if you volunteer it could be once a month or an hour a week.
You got this!
Me-44 (45) H- 50 (51) M-'96
S-18(20)D-15(17)D-12(14)
BD Feb 2014 (he works overseas) home Oct(sep rooms) (EAs possible Pa's unconfirmed) insists wants D through July 2015 no more talk of D since