efficiency is for machines if your grinding when you have to, then it makes no difference what when where, and how much you put into unwinding anger is good, if it's not disfunctional, and directed at actual bad things that effect you now, anger is your signal to, grind, right through the objectionable thing, if its remote like the web page, then any amount of effort is waste, and self harm so grind, or luxurate in the knowledge that, whew! no more grind power left just now timing is for refining your thing, and streamlineing, but if you got no thing grind it's meaningless to optimise, treading water, especialy when there is a beach resort that you can see and hear I would reverse the whole thing and say that if you were to time your very best moments of work, or creativity, you will find them to be shockingly brief, and remembering the specific conditions that led to those moments, is the thing to focus on and foster. baring that grind