Many people go from absolutely no study (or the minimal amount possible i.e. cramming) and then think that they are almost magically going to break these bad habits (which haven't been broken before) and study like crazy during these "holidays"/STUVAC.
Only problem with that is old habits die hard. No doubt you will be left cramming a few days/night before your exams. Instead of thinking "I'm going to do 6 hours today I PROMISE" maybe try for smaller blocks.
Such as: "today I want to complete x and if I get that done I am reward with y but if I get it done before x time I get more y time". Make lists, plans whatever helps. Just make it easier on yourself and not harder by putting all this pressure on yourself, not knowing where to start and starting from a dead stop instead of a slow run.
Best of luck 07ers, I hope my advice is somewhat helpful. Although you will probably read this post and stick with what you are doing now.