Judi - it is not unheard of for top actresses to still experience nerves before they go on stage. You can certainly learn to overcome these though, so far as the audience is concerned.
It is not always simply about confidence though, it is usually also about content. A bit of both helps alot and it is encouraging to see that we can be sufficiently challenged by this in our careers to keep wanting to get better at it. It was certainly interesting to read the CEO story, and one of the reasons I jumped into this thread head first.
Mr Sikder Afzal you appear to have more confidence currently in the internet than myself. My hope would be that you posted your own CV here. It seems unfair if this was done without your consent, particularly given your experience and the quality of the text.
If you did post it, can I please ask why you take such a direct approach? Is it connected to the themes of the thread in a way that is not very clear to me ? Do you favour this over a highly specific/low number of applications approach?