First, work out what you personally could have done to avoid each issue to which you contributed.
Sometimes what seems like your fault, really isn't. Case in point, a huge screw-up we had on my bar band gig Saturday night. We're starting "Red Solo Cup" and the guy playing banjo starts it in G. (We play it in A). So I've got my IEMs in but for some reason banjo's not in my mix so I walk my part in... in A. So we're both just jamming along, totally unaware we're off by a whole step from each other. BL/singer is looking back at me like, "W-T-F" and I had no idea. So really it was the banjo player's fault for starting in the wrong key but if I had been able to hear him I could have adapted. Oh well.