Well, the HSC exams are coming up rather soon (starting October 16th) so I'm going to use this chance to send a good luck shout-out to my brother Michael. He's not someone who finds it really easy to concentrate or to accept the authority of teachers, so he's not having the easiest time of it this year. Conversely however, he's smart and enjoys learning, so he's not having as bad a time as many other students. As long as he can stay focused, keep his OCD tendencies* under control and keep his eyes on the prize he'll be just fine.
*He's not really OCD/OCPD he's just got a very particular way of looking at the word. I think this comic from xkcd explains it better than I could: