Believing in yourself is a choice

You weren’t an accident. You weren’t mass produced.
You aren’t an assembly-line product. You were deliberately planned, specifically gifted, and lovingly positioned on the Earth by the Master Craftsman.
MAX LUCADO Best-selling author If you are going to be successful in creating the life of your dreams, you have to believe that you are capable of making it happen. You have to believe you have the right stuff, that you are able to pull it off. You have to believe in yourself. Whether you call it self-esteem, self-confidence, or self-assurance, it is a deep-seated belief that you have what it takes—the abilities, inner resources, talents, and skills to create your desired results.
Believing in Yourself is an Attitude Believing in yourself is a choice. It is an attitude you develop over time. Although it helps if you had positive and supportive parents, the fact is that most of us had run-of-the-mill parents who inadvertently passed on to us the same limiting beliefs and negative conditioning they grew up with.
But remember, the past is the past. There is no payoff for blaming them for your current level of self-confidence. It’s now your responsibility to take charge of your own self-concept and your beliefs. You must choose to believe that you can do anything you set your mind to—anything at all— because, in fact, you can. It might help you to know that the latest brain research now indicates that with enough positive self-talk and positive visualization combined with the proper training, coaching, and practice, anyone can learn to do almost anything.
Of the hundreds of supersuccessful people I have interviewed for this and other books, almost every one of them told me, “I was not the most gifted or talented person in my field, but I chose to believe anything was possible. I studied, practiced, and worked harder than the others, and that’s how I got to where I am.” If a 20-year-old Texan can take up the luge and become an Olympic athlete, a college dropout can become a billionaire, and a dyslexic student who failed three grades can become a best-selling author and television producer, then you, too, can accomplish anything if you will simply believe it is possible.
If you assume in favor of yourself and act as if it is possible, then you will do the things that are necessary to bring about the result. If you believe it is impossible, you will not do what is necessary, and you will not produce the result. It becomes a self-fulfilling prophecy.

Cued from jack canfield success principles