You always have options, too -- I got a band going with some guys who were parents from my kids' school, enjoyed it for a while, got back up to speed (better than back in the day, actually) and then got frustrated with that band (differing goals and tastes). Much to my surprise, in a moment of frustration I searched local Craigs List for bands looking for a bass player, found a couple of opportunities that sounded good, picked the one that appealed the most, and voila --- I'm in a second band. More time and effort, yes - but each band saves me from getting frustrated with the other.
My point is not to bite off more than you can chew. It's just good to recognize there are lots of ways to find bands and musicians to fit your needs. One of my bands lost a guitarist and within 2 weeks, we had auditioned 4 likely candidates and recruited the one we wanted - off Craigs List in this case, but bandmix.com and musicianforest.com are other good online locations to find other players. I don't live in an extremely large metro area, either (Milwaukee). I've always been surprised how many players are available despite that.
Sorry for the hijack, but before I blundered my way back into finding other musicians, I'd have loved to know how easy it could be. Hope your adventure is fun and rewarding.