How Not To Worry: A 1934 Guide to Mastering Life
http://www.brainpickings.org/index.php/2013/03/18/you-can-master-life-1934/
"On studying his chronic fears this man found they fell into five fairly distinct classifications:
1.Worries about disasters which, as later events proved, never happened. About 40% of my anxieties.
2.Worries about decisions I had made in the past, decisions about which I could now of course do nothing. About 30% of my anxieties.
3.Worries about possible sickness and a possible nervous breakdown, neither of which materialized. About 12% of my worries.
4.Worries about my children and my friends, worries arising from the fact I forgot these people have an ordinary amount of common sense. About 10% of my worries.
5.Worries that have a real foundation. Possibly 8% of the total."
What, of this man, is the first step in the conquest of anxiety? It is to limit his worrying to the few perils in his fifth group. This simple act will eliminate 92% of his fears. Or, to figure the matter differently, it will leave him free from worry 92% of the time."
Struck a chord with me :)