Very frustrating

Today has been a very frustrating day, at it's barely 10:30am! I have my first test in business management, and I am definitely not prepared for it, or don't feel like I am. My car completely died when I pulled into the office to run an errand....I am just hoping and praying nothing else bad happens today that I am unprepared for. I am trying to stay positive, but on days like this, it is very trying!