How to overcome fear of rejection from women?

You go out and experience it, and learn first hand that a rejection doesn't cause injury or illness. It doesn't cost you money. It doesn't damage your senses. And the girl isn't going to turn you down, then rip off your arms and beat you with them.

“I will act now. I will act now. I will act now. Henceforth, I will repeat these words each hour, each day, everyday, until the words become as much a habit as my breathing, and the action which follows becomes as instinctive as the blinking of my eyelids. With these words I can condition my mind to perform every action necessary for my success. I will act now. I will repeat these words again and again and again. I will walk where failures fear to walk. I will work when failures seek rest. I will act now for now is all I have. Tomorrow is the day reserved for the labor of the lazy. I am not lazy. Tomorrow is the day when the failure will succeed. I am not a failure. I will act now. Success will not wait. If I delay, success will become wed to another and lost to me forever. This is the time. This is the place. I am the person.”

― Og Mandino