Plot a short story in which an interesting character has to overcome a conflict with himself or herself

It will be better if you thought of a story of your own to show the teacher you understand it but anyways here's mine..

Joshua is a young 14 year old boy and tomorrow he is going back to school again. Josh was bullied and tormented by his bully, Ranny and his friends they kicked him and hurted him with no help of any classmate. Joshua arrived at the school paranoid and shaken he walked in and walked into his class to find Ranny and two of his friends there in the same class. Joshua's eyes widen. Joshua desk was behind Ranny and Josh took a seat and tried doing the given worksheet but Ranny slided all his books and sheet on to the floor and said to everyone "Guess who's also hear!" Joshua had gone numb and Ranny then held Joshua by his collar.
And Ranny said "Your so little and wea-" without Ranny finishing his sentence Joshua had hit Ranny and Ranny felt to the ground. For the first time. A week later Ranny was still in the same class but was as quite as ever along with his friends. Joshua ended the bullying and Josh made a best friend with Jake who was another victim of Ranny's bullying.

Sorry this is long made it as interesting as I can you can cut some parts out and replace. Gotten way into this story!

It would be better if you thought of a story on your own