Shu Chuan: Cannon Fodder Female Partner's Handbook for Turning Around

I was coding in the middle of the night, and I accidentally traveled through time. I actually traveled through my own novel, and I was still a cannon fodder female supporting character. I was bullied by the female supporting character, bullied by the female supporting character's mother, and anyone can bully me. As a demo, I am the author of this book and you still want to bully me. Let's see how I can turn things around. Let's see how the cannon fodder female supporting character turns around and becomes the heroine.