I am reading a story and I need to retell it and then to ask some questions about the plot. So I don’t know what tense I should use. The author himself switches from Present Simple/Continuous to Past Simple from time to time. So I am absolutely confused. Here are some extracts for you to make my question more clear: 1. It was December 21st, I am 15 and I am living through a slump. 2. I went to school. Flash forward a few hours I am sitting in the Vice Principal’s office. Thank you!