"My Smoke-Free Youth" could be written as a short story. Here are some writing suggestions: The beginning should be fascinating. You can use some suspense to attract the reader's attention, such as: "When I was a baby, I noticed that I smelled like smoke and my grandmother told me that it was the result of smoking." 2. Description of the protagonist's childhood. It could describe how the protagonist grew up, how he came into contact with smoking, and his views and feelings about smoking. 3. highlight the change of the protagonist. The protagonist's experiences could be used to highlight his changes. For example, he was no longer a child who liked to smoke, but began to realize the dangers of smoking and tried to quit smoking. 4. Create a distinct character image. It could describe the protagonist's personality, appearance, and inner feelings so that the reader could better understand him. 5. Set the climax of the plot. You can set up some suspense or tension at the climax of the story to make the reader more involved in the story. The ending should be memorable. You can use some twists or unexpected plots to end the story so that the reader will have a deep impression of it. I hope these suggestions will be helpful. I hope you can write an excellent novel!