'nonsense'

As I have found a new job. I have to work in the daytime and teach English at night. I sometimes work overtime. So I can not reach the school in time. And I also feel tired after a tiring day's work, so I ask the school to cancel one of my classes, PETS4. This class will begin on 13 June. I ask the team leader on 10 June to cancel it. I said a lot to them. I apologize for not being available. My excuses are that I have got such a bad sore throat that I can not speak any more. Furthermore I find the my teaching is not as good as before. I do not want to spoil the classes and spoil myself. Of course, they feel very surprised and pitiful about that. They can not find a suitable teacher teaching PETS4 in a very short time. So they have to cancel this class. They said it's a great loss to the school. It greatly affected the reputation of the school. Though they have agreed to let me go, I feel worried about me. I have been teaching English in this school for about 1 and half year. I have not asked for leave or been late for a time due to my personal affairs. I always try to be a good teacher, teaching the students everything I know. I am quite responsible for my work and myself. So I feel regretful about me. I also feel grateful that the team leaders can understand me. Thanks…. I will keep on doing well.