what am i doing?

I came back school yesterday because of I want to go classes, even if I’m so exhausted in Taipei Information Show, but I still took bus come back. Unfortunately, I sleep sooooooooo deep that I couldn’t hear my alarm, so I woke up in the 13:54. :( The result is I didn’t come to ALL of classes on Wed.

I can’t help to think what I come back the dormitory to sleep all day? I have little
regret about I should come to class but I didn’t….