Tianlong: from the Dog-Licking Zhong Wanchou to the Ten Thousand Tribulations Demon Lord

A modern terminally ill patient is reborn as Zhong Wanchou in the world of Demi-Gods and Dragons. During his lifetime, he does not want to repeat the same mistakes as Zhong Wanchou in the original novel, and is determined to change his character and stop being a licker. Steal the opportunity of the protagonist, practice the strongest martial arts, and become a big devil after practicing?