Анализ Doctor in the House

The passage I am going to interpret is taken from the book entitled “Doctor in the house”. It is written by the English writer Richard Gordon. He is famous for a serious of comic novels on a medical theme. “Doctor in the house” is considered his first book out of 12.
It is a first person narration: “I walked down the stairs feeling as if I had just finished an eight-round fight…” or “I stood before table four. I didn’t recognize the examiners.” One can also observe the dialogues between the main character and his friends: “How did you get on? ” I asked. “So-so” he replied. “However, I’m not worried…” The events are presented through the perception of the main character: a young student who is going to pass his final examination