This book is also known as: My Mind Is Falling Apart as I Travel Back and Forth Between the Otherworld and Reality
“What are the main symptoms of your mental illness?”
“This world keeps changing without my knowing.”
“And what is the world you see like?”
“What about the world I'm in right now? Is it one that reveres science and enjoys peace and stability, or one that's brutal and bloody, haunted by ghosts and gods?”
“Your condition is serious. Tell me about that brutal, bloody world where ghosts and gods roam.”
“Colossal abyssal beasts erupt from the boundless earth and destroy cities without warning. Cunning, savage sea monsters endlessly invade the coast. Stone statues stand unbowed atop towering mountains stretching for thousands of miles, while bizarre beings erode people's will and magnify their desires. Humanity can only struggle to survive in the cracks... Oh, right. Who am I? And who are you?”
“You're Xu Mingsheng. My name is Gu...”
It feels like the writing is rather childish, but the setting is okay. It should be a book that will be used later in life, so keep it.