Hi Tim, and welcome to the Forum !
I really admire you for getting back to the guitar again so soon after your accident. The way you introduced yourself, it looks you're planning music as a career, so that's a major handicap, to put it mildly, but I'm sure you'll overcome it.
I broke three fingers on the left hand about 17 years ago, and it took me a long time before resuming practice, I really thought my guitar days were over, so I concentrated on conducting choirs, which helped my understanding of music, but I missed the guitar so much, I began playing again about six years ago, and wow, was it hard going in the beginning !!!
I hope your concert goes really well, and, as they say in France, bon courage