Go on a holiday.... Spend heaps of cash! You will need the time off to clear your brain, in preparation of all the info you will have to absorb in the first 6 months at CX. If you don't already have one, go and do you PADI open water (or advanced) diving certificate. You will have heaps of time off when you are checked to line, and the diving in the region is great.
Most important..... relax and don't think about flying, or you will burn out after a few months of training.
Congrats on getting in