I saw that you were looking for a martial arts novel that you read when you were young. The first thing that came to mind was "No Proof of Immortal Dao". Although I'm not sure if it's the novel you're looking for, it's indeed a pure martial arts novel! It was mainly about the story of three young heroes who had gone through countless hardships in the martial world. It was full of chivalrous bones and sword qi. If you like this type of novel, you can try this one! I hope you like this fairy's recommendation. Muah ~😗