A Different World Novel That Starts with a Shitty Plot

One day, the protagonist breaks the dimensional wall and discovers that he is actually a tragic licking dog in a street novel. So he became dissatisfied with the hard life that the author had arranged for him, so he broke up with the author, restarted the story, and took control of the creation. He wanted to change his tragic fate in the story, and save the plot of the story that was originally destroyed by the author, and the fictional world that was about to collapse.