I am so nasty, I love sex and consider myself a nympho. Is it possible for me to change?

There is nothing wrong with loving sex. There is also no shame in being who and what you are. The problem is figuring out just who and what you are. If you do not like some aspect of your life change it. It is your responsibility. There is no one else who can do it for you. Please do not let some other idiot rob you of the joy of being yourself. Find your own path.