Your F.A. 3.1 results really hurt me V.V

You had your F.A. 3.1 on 9/5. I really thought that you could do well as the paper is so simple and the questions are so directly asked. I took all the paper home and marked the paper until 1 a.m. Surprisingly, many of you didn't read the instructions and made serious mistakes. Not because the questions are difficult, not because of not having enough time, just because of your carelessness. I know some of you are very confident in using English now as your 2nd term exam results are so good. You overlook the questions, over-estimate your ability and under-estimate the influence of your performance to me. I was shocked when I discovered so many of you scored low in this SIMPLE paper. I was really upset and disappointed. Even when you were having the F.A., I reminded you to read the instructions carefully. It seems to me that I talked to AIR only. Nobody listened to me and nobody knew I was giving tips and chance to you to make changes. I was so depressed not because of the marks, just because I think nobody listened to me anymore. Am I so useless? Am I invisible? Does it mean that you don't like me/English anymore? I spent hours to design the quizzes and tests for you since I want to help you do your revision. But what's the point to do so much for you? For your quiz 8, I designed the movie review, searched the pictures, create the summary...... I didn't copy the questions from any exercise book, I created ALL the things by myself. I just want you to get good grades and show me your actual English ability. Unfortunately, just 7 of you scored more than 90 marks in F.A. Did I do anything wrong? You always say you like to have quizzes and tests. I did it for you already. What did I do wrong? I spent all my time to teach you and I just want you all to be CAREFUL. I say it more than a hundred times and I always show your classmates' careless examples to you. I want you to remember and to be careful not to be the next careless student. But again and again, I can take out lots of careless examples to show you all. Anybody can teach me what I should do and what you want me to do?

By the way, I decided to buy you a lunch buffet before you leave the school. Not because of any promises, not because you said you want it. As I said before, I'd like to have 30 As, but you just can get 19. I noticed that most of you made significant improvement in these two years. I really appreciated your effort and want to show my appreciation to you. Of course, it's your last year in this school and I want to have a wonderful and memorable moment with you. I just sent an e-mail to the principal and asked him to allow us to have the buffet in the classroom on 27/6. If you get the lunch order form from the canteen, please let me know and I'll give you a reply as soon as possible. For the time being, I am still very upset. But anyway, I try to forget this unhappy event and I will try my best to teach you in the remaining two months. CAN YOU PROMISE ME TO WORK HARD IN THE FINAL TERM EXAM, ENJOY THE REMAINING LESSONS WITH ME AND GIVE ME TWO MONTHS' HAPPINESS?