My advice is write a generalised thesis (no need to memorise an essay), and make it adaptable. They can only ask you questions related to 4 topics: collective and individual human experiences, human emotion, storytelling, and paradoxes/anomalies/inconsistencies. Advice is to write the generalised thesis on collective/individual experiences or human emotions as they’re easier to adapt to each other. Then if the question asks about storytelling, adapt it to say how storytelling is used to discuss collective/individual experiences or human emotions. If the question asks about paradoxes, adapt it to discuss paradoxes in human experiences or human emotions.