It is hard to catch up.

I do not like to skip classes, because if I do so, I have made more effort to make up the lessons I have missed. Now I do feel the stress, because I caught a cold last Wednesday, so I went to see the doctor in the morning. That meant I missed the classes in the morning. And my classmate did the presentation that day. What a pity! I missed that! So now I have to spend more time and make more efforts in order to catch up. How tired it is! But that was all my own faults, if I did not caught a cold, then I would not skip the class, and it I did not skip the class, and now I will not be so tired. That was all my faults.