True success and true happiness not only go together but each other enhances the other.

It is well known that when Thomas A. Eddison was stymied by a problem, he would lie down and take a short nap.

Begin to imagine what the desirable outcome would be like. Go over these mental pictures and delineate details and refinements. Play them over and over to yourself.

This is where you will win the battle - in the playhouse of your mind.

Your nervous system cannot tell the difference between an imagined experience and a 'real' experience. In either case, it reacts automatically to information which you give to it from your forebrain. Your nervous system reacts appropriately to what you THINK or IMAGINE to be 'true.

Happiness is simply a state of mind in which our thinking is pleasant a good share of the time.

As soon as the error has been recognized and corrections made, it's equally important that the error be forgotten and the successful attempt remembered and dwelt upon.