Don't fake your confidence, create it.

I can’t help you develop your self confidence if you do not appreciate your self-worth and raise your own self esteem. A person who appreciates their self-worth works on it and enhances it through evaluation, study, discipline, character and competence. Raising your self-esteem is a measure of how much you value and utilize the investment you make in yourself. It is also a practical and realistic assessment of your capabilities and competence. Self-confidence, then, is not a facade, it is about your ability to step out and deploy your worth to create value for others and benefit humanity.