What Do I Do After Transmigrating into the Simp in My Own Novel?

Li Nan had written a book with a female protagonist and was nearing the end when he fell asleep. He woke up to find that he had transmigrated into his own story! The catch was that he had become the heroine's devoted simp. To escape the fate of being killed after pursuing her to the bitter end, he steeled himself and set out on his own path.