What Should I Do If I Time Travel and Become the Female Supporting Character in a Rebirth Novel?

I just got drunk and drank the movie, so why did I travel through time in a daze, or did I travel back and forth to become the vicious female supporting character in the rebirth novel? You must know that the heroines in the rebirth novel all want revenge! No, I can't just sit there and wait for death. I must change the fate of the female supporting character in the book.