Once, you were a high achiever, full of enthusiasm and energy about your work. You'd put in the hours and more. You'd defend your work, extol its virtues: you felt part of something bigger than yourself. Then, at a point you can't quite recall, all this began to change. Maybe you put it down to feeling a bit tired and a little out of sorts? But these new feelings and thoughts slowly took up residence. Increasingly you began to question the worth of what you are doing and the fact that your hard...