I guess having worked in a machine-shop, I learned a couple of things... One rule that worked was, "If the parts just won't come out right, step back from the machine and have a cup of coffee". One thing I do, ( I write, too ), is to go to a movie, and just relax and enjoy.... maybe stop at a shop and have some Rhubarb pie.... I love the stuff, and it shows. To me, the main idea is to just let my mind clear, and approach whatever it is with a better outlook.
 
  Hey, fixer. Be careful.... my wife discovered the joys of pulling the power cords, and watching me try to find them, all the while making "comments" and stoutly refusing to tell me where they were. Lou.

"..... and that was when things got interestiing."