I can relate. I am stuck in suburbia with no car, recently broken up with boyfriend, and don't know anyone here. With no way to get around, I'm pretty isolated. Lately I've been going to events in my apartment complex, and have slowly been gaining my confidence back to just start talking to people. I'm a bit introverted and not naturally one to work a room, so it hasn't been easy.

It seems that you have belonged to a number of groups that have start and end dates. Have you ever thought about hosting a gathering for the members at your home? It could be a "farewell" thing where everyone has an opportunity to exchange contact info with everyone else and you doing the same wouldn't seem out of place.

Do you belong to any other BBS services? Maybe one about a hobby, interest, or your favorite sports team? I once organized a happy hour for a bunch of regulars on a board, and I not only made a very good friend that way, I also met my ex-hub that way.

Or maybe you could start a group on Meet-Up, and be the organizer.

The overall point here is to step up and be a leader. This way you aren't focusing on just one or two people, but coming into contact with a whole bunch of people at once with whom you already know you have at least one thing in common. They will also be turning to you and contacting you for information, to make suggestions, etc., which will give you an opportunity to show people how kind, fun, and together you can be--the sort of person people want to be friends with.

It could be a challenge, but sometimes being proactive and grabbing the bull by the horns all gung-ho is the way to go because you'll be so busy answering questions and making plans that you won't have time to focus on yourself and wreck your own confidence.