Another kind of career-related question for you... My sense is that this is a rather universal experience among performers/artists, but maybe not. At various times over the course of my "career" as a musician (roughly 20 years at this point), there have been situations where I've felt like my playing experience and just fundamental skill set are coming up short of the current expectations of whatever project I'm involved with. Of course, when this happens the tendency is to immediately feel overwhelmed and sort of shut down and become far less "present"...absolutely the worst thing that can happen. And to a certain extent I feel like this has been one of the things that has held me back over the years. Would you happen to have any thoughts on this? Thanks.