This is correct. Your thesis statement is the base for your entire essay. Hope this helps!
If you're trying to write a story that "ends with the words: How wrong he was" you may want to make the story about some kind of stance you make that he disagrees with. You could choose any topic that usually creates tension between people, such as politics or the environment.
In Tim O'Briens chapter good form, the narrator says he wants his readers to feel WHAT HE FELT.
Even though I haven't read the whole story, I think he is using the first person point of view in telling his story. This is because in using the first person point of view, readers will be able to put themselves in the narrator's shoes and experience what is happening in the story.
They answers are on google but its not letting me uploading it