I've heard *somewhere* that by using a word 6 times in 6 different ways you should have it committed to memory. Could be a load of bull, or only work in your first language, but worth a try!
+1 for the thinking in French approach.
May I suggest you take this up a notch by....
Writing a diary! It is not only one way to practise your French and experiment with new words (I advise learning 1 new word a day), but it is also a great stress-relief mechanism for the full-on epic-ness of the VCE. Sometimes scribbling down your problems -yes, even in incorrect French- can be all that is required for you to feel a bit more...zen..
You could also see it as a way to test your memory, to see how many things you can recall and document on your day. Also, see it as a challenge for how many sentence structures you can use in French, which will ultimately extend your vocab knowledge. Instead of just documenting your day to day facts and figures and the time you ate dinner and who you spoke to, don't get me wrong, I'm sure it's riveting, but add comments and feelings, use the diary as a way to practise your subjunctive or si clauses. If you do attempt this approach, I assure you that it will also help enormously in the long-run when it comes to extending yourself in the oral SACs and exams, as the marks are in these things. The examiners and your teachers also are looking for opinions and comments as opposed to just facts.