Yep I definitely agree remember these exams should be for you no one else I know it feel like your doing it for other people like teachers but ultimately its about you.The only thing you should worry about is if you are looking forward to tomorrow- if not ask yourself why then remind yourself of the little joys each day.
For example finding a biscuit in your bag !, meeting friends, the people you meet in day to day life.
I know a lot of people going through the same ideal i know this may not work for you but sometimes all you need are some earphones, good tunes and happy memories.