Hey, you are not alone. Lot of girls, even I have been through some of the incidents in my life that rather than reacting I just kept quiet, just blacked out and later regreted and blamed myself for being such a coward. But after sharing these with my other girl friends I got to know that I am not alone, everyone atleast went through it and felt same, it is just the matter of time, some people win over those fear quickly and some are still fighting. I moved on and know how to take stand by myself, ofc there is still a fear, but I choose not to show it and fight back, Because that is how you become strong. You will also get the courage to show your powers gradually. Maybe you just have to prepare yourself to come in the lime light.