I think as you stay sober longer you may find that 7 and 9 year old very engaging. I'm 49 and my 10 year olds are kind of fun to hang out with now that I'm sober.
You might need to nurture that relationship - but really - you might find out you like your kids more than you thought.
Other than that - how about a gym? But you need to focus on where people aren't drinking - maybe a class at a community center/college?