Me.
Good luck on your exams. If you've been studying then the written and oral parts will be a piece of cake. As for the practical, whatever task you're given, remember to ask for and follow approved reference data. The DME won't care so much how long it took you to do a task, but that it's done right.
Also even after you've been working in the aviation field for years, never stop learning and asking questions. It's the mechanics who think they know it all, and are over-confident in their own abilities who are the dangerous ones.