The End of the World as I Know It

Either I'm really fucking stupid, or the world hates me. Really. Probably a little bit of both.
I thought my English Diploma Part B was tomorrow. It was today. My mother called and told me, and she told me to check the messages. I checked, and Mr Mack had called to tell me that I needed to be there by 10:05 so I could still do it. Unforetunately, if I had even gotten the message, it would have been too late because it takes me an hour to get to school.
So basically, I'm going to die. My mother...oh dear God, my mother....is going to rag on me forever about this.
I just want to know what I did in a past life to make everything important to me like this go so wrong. All the time. I was so prepared for tomorrow. So prepared. I hope I can write the exam again at the end of the year.