Stealing a Pen

Late at night, I received a call from a missing friend - "This world is a novel, and we are all characters being written." I thought he was crazy. Until one after another supernatural events appeared around me, until I only had three months left to live. I just discovered that my life trajectory is advancing according to a certain "script". Someone is secretly controlling everything, and it is called "destiny" - it is recorded in the Strange News: "There are steps in the West Pole, mortals can climb them, see the beauty of the sky, and change their destiny." Now, before I write down the pen, I want to rewrite my own ending. Or... Kill the author of this story.