DT I am really happy for you! You mentioned an important key to making new friends...joining a club for a cause you care about.
I joined a church and a bunch of other stuff. The church people are like family to me now. Actually it's unbelievable how many people I know now, through all walks of life. But still, my best friends are the women who knew me long ago, who left the religion way before I did and who I found again after I myself left. But when you are a witness you are constantly putting a wall between yourself and everyone not a witness. Breaking that wall down, you talk to people differently than you used to! There's no more reserve. More eye contact. More questions. More interest.