Check out the forum for games you want to join, be sure to sign up for our discord because that’s where a lot of the conversation and planning happens, and just enjoy yourself in general! And… Welcome!
I see you already registered on Discord That’s probably where currently the most activity is taking place.
A small tip I’d have is to mark everything as read, and then you can after a bit see channels that have actual activity, which might give a broad idea of what’s going on where.
And important to remember: We’re all old, we’re all disparate people, and generally games come and go in waves. The average OTGer can give lessons to a squirrel.