Science examination (Yap)

Last Saturday we had a science examination and the results came out this Friday.
Those who were always hard-working got a good mark. And those who were lazy during phase one did a bad job. However Professor Tay said that he would talk to those who did not pass the examination and see whether they need help.
I did a bad job especially in my C Programming exam even though I passed it. I felt very unhappy when I got the results. However, when I thought about the reasons, I became angry with myself. When taking the lessons, I felt boring and sometimes I could not understand the teacher. So, I chose not to listen and learn it by myself. But the information in the handout was only part of the knowledge and the information that the teacher taught us during the class was very important. However, I missed the important one and when I was taking the exam, sometimes I could not even understand the question. Another reason is that I became lazy since I came to Singapore. There was not so much pressure here as in Shandong Province. So I felt relaxed and lowered the demand to myself. This was very ridiculous and I got the deserving consequence.
Once I read a story and it told us that today we are living in the house which we built for ourselves yesterday. So I think that I can blame nobody except myself. When in China, I got good marks because I was tough-minded and worked hard and would never give up. But I have changed since I came to Singapore. I became lazy and relaxed. My head-teacher once told us: the most dangerous situation for a nation is not when there are strong nations threatening it but when it is peaceful and the whole nation become relaxed and lack the consciousness of crisis. So is it with individual. When the situation is very difficult and full of pressure, a person can become strong and his motivation can be inspired. So usually in this kind of situation, a person can be his best and achieve a lot. I think this is my problem. My life here is so relaxed and I become lazy and lack the consciousness of crisis. This is why I became very angry with myself.
Life here is different from that in China. I cannot change the situation but I can change myself to adapt to it. Or I will never be successful. So, from now on, I should be myself again and be strict with myself. Time is limited and I should never waste it again. This science examination is very painful for me but I think that it is essential. It let me come to realize the situation that I meet and tell me the truth that no one can achieve anything without diligence.