I would always recommend to change the answer a little bit, even if it is only changing the verbs in a sentence or the order of a sentence, it will just help you create a new application without necessarily changing the content of it. However, you want to highlight different parts of yourself since your last application, so I personally feel it is important to write a new answer where you use the same experiences if you do not have new ones, touching upon new nuances or details that you did not discuss before or you only touched on briefly before. This will allow you to create a new response without necessarily having to create a new answer from scratch.