Self-image makes everything about you!

This self-image becomes a golden key to living a better
life because of two important discoveries:
(1) All your actions, feelings, behavior—even your
abilities—are always consistent with this self-image.
In short, you will "act like" the sort of person you conceive
yourself to be. Not only this, but you literally cannot
act otherwise, in spite of all your conscious efforts or
will power. The man who conceives himself to be a "failure-
type person" will find some way to fail, in spite of all
his good intentions, or his will power, even if opportunity
is literally dumped in his lap. The person who conceives
himself to be a victim of injustice, one "who was meant
to suffer," will invariably find circumstances to verify his
opinions.
The self-image is a "premise," a base, or a foundation
upon which your entire personality, your behavior, and
even your circumstances are built. Because of this our ex
periences seem to verify, and thereby strengthen our self
images, and a vicious or a beneficent cycle, as the case
may be, is set up.
For example, a schoolboy who sees himself as an "F"
type student, or one who is "dumb in mathematics," will
invariably find that his report card bears him out. He then
has "proof." A young girl who has an image of herself
as the sort of person nobody likes will find indeed that
she is avoided at the school dance. She literally invites rejection.
Her woe-begone expression, her hang-dog manner,
her over-anxiousness to please, or perhaps her unconscious
hostility towards those she anticipates will
affront her—all act to drive away those whom she would
attract. In the same manner, a salesman or a businessman
will also find that his actual experiences tend to "prove"
his self-image is correct.
Because of this objective "proof" it very seldom occurs
to a person that his trouble lies in his self-image or his
own evaluation of himself. Tell the schoolboy that he only
"thinks" he cannot master algebra, and he will doubt
your sanity. He has tried and tried, and still his report
card tells the story. Tell the salesman that it is only an idea
that he cannot earn more than a certain figure, and he can
prove you wrong by his order book. He knows only too
well how hard he has tried and failed. Yet, as we shall
see later, almost miraculous changes have occurred both
in grades of students, and in the earning capacity of salesmen—
when they were prevailed upon to change their selfimages.