We act, we behave, and we feel the vibration that we're in at the present time according to what we consider our self-image to be. And we do not deviate from that pattern. The image you hold of yourself is a premise, a foundation (idea) on which your entire personality is built. This image, not only controls your behavior but your circumstances as well.
Happiness is simply a state of mind in which our thinking is pleasant a good share of the time.
Another cause of confusion, and the resulting feelings of nervousness, hurry, and anxiety, is the absurd habit of trying to do many things at one time.
You can do only one thing at a time. I simply tackle one problem and concentrate all efforts on what I am doing at the moment.
It is the job of conscious rational thought to decide what you want, select the goals you wish to achieve—and concentrate upon these rather than upon what you do not want. To spend time and effort concentrating upon what you do not want is not rational.