In general, the essays' purpose is to inform, argue/support a point of view, or convince someone of a certain point of view, using valid sources that support the ideas in it (speeches, books, theories, etc.). The author is the one who organizes the order of the ideas of the topic, according to what he/she wants to accomplish or convey. Therefore, a chronological outline is not as essential to developing the essay as a topic based outline is.
I think making a video game would be the easiest, but personally, I love to write stories, so I would probably choose to write a story that had the same theme or setting.
He could have thoughts like "how will my teachers be like" or "will the students like me" or they could be thinking about if they have all that they need and if they will do well or not. they could be thinking about literally anything.
