Success stories are often about how someone overcame difficulties and reached their goals. 'Accomplishment anecdote' can be another term. An anecdote is a short interesting story, and when combined with accomplishment, it can convey the same meaning as a success story.
Denouement. It is a French term that has been adopted into English to specifically mean the final part of a story where all the loose ends are tied up, secrets are revealed, and the story reaches its final resolution. It often comes after the climax of the story and is a more literary or sophisticated way of referring to the end of a story.
Well, another word could be 'recount'. When you recount something, you are basically telling a story. For example, you can recount your adventures during a trip. It implies that you are going through the events in a sequential way, much like when you tell a story. You might share the details, the people you met, and the things you did.
Recounts. When you recount something, you are giving an account of it, which is another way of saying you are telling the story. For instance, a veteran might recount his war experiences, meaning he is telling the story of his time in the war.