although I will not be able to fully explain how to achieve what your trying to do, I would suggest you read "The Book of Five Rings" by Musashi Miyamoto. It explains how to be able to execute a task with efficiency even if you are faced with endless distraction. To summarize his lessons, you must practice what you do until your body gets accustomed to the task at hand. if you achive this, you may perform your work without thinking about it. Thus, the concept of "no mind". The same concept as walking. When you walk, you don't really think about walking. you just walk. That is because you have practiced walking all your life that your a master of it already. when you try to think about how you walk, you tend to lose your balance. . . As a piece of advise, don't try to over-analyze what your doing. Just do your best, but don't do anything you can't. As one said before, "we cannot see past the choices we make".