Aside from the obvious physical maladies that come with age, what are some of the things that can affect your playing in a negative way? The reason I ask is I play out two nights a week, roughly 8 -10 gigs a month. I have been playing guitar for around 30 years. I am 43 now. It just seems like I was a much better guitarists 5 years ago. Has anyone experienced this? It is just headspace or what? Any advice would be greatly appreciated. Thanks.