As the title says, at what point did you feel competent enough to join a band? I’ve been playing the guitar for almost 2 years now, and feel like I hit a bit of a plateau, and I’m thinking joining a band might help. At the same time, I don’t really feel like I am good enough to play with others.
I had been playing for 15 years or so before I joined a band. The trick is to not aim too high, make music that is a bit (but not too much) below your skill level. That way you are able to get the hang of songs relatively easy, which boosts your confidence. From there on you can keep growing.