I think if you exercise, your state of mind - my state of mind - is usually more at ease, ready for more mental challenges. Once I get the physical stuff out of the way it always seems like I have more calmness and better self-esteem.
I've always related music to those moments when someone turns you loose on something and they haven't told you how to do it.
Call it holistic or holographic thinking, it's been quite effective imagining the world's problems are all right in front of you on a smaller scale with your band. You deal with those relationships, and that's where real major change begins.
It may take me a long time before I feel 'ready' to tour as a lead singer. I may never be ready... we'll just have to see.
John Hanning Speke