What interests do you have? Can you join a group or club that does something you enjoy? The people may be older, but will be less likely to judge you on whether you have a car.
Check out stuff in your neighborhood like that. A book club if you like reading, maybe a walkers or runners club. Other than AA, that is how I started meeting people who don't base their life on alcohol and we had a common interest. Maybe there is a group at your museum?
Hang in there. We've all been there at times. It will get better and you make good friends