Pack, unpack, Pack, unpack
Plan a little. Don't obsess over it. Make sure you KNOW when your final payment is due!!! Pack, unpack, go shopping for new clothes. Pack, unpack. Do I have enought sunscreen? pack unpack. Do I really need this many clothes? Watch Titanic and the Poseidon Adventure. Unpack, consider cancelling. Watch some old episodes of "The Love Boat". Repack, make sure to make your flight and hotel ressies for the day before the cruise leaves. Unpack, pack. Watch Finding Nemo and start identifying the different types of sea critters you might encounter while snorkeling during the cruise. Find ALL of the Birth Certificates needed. Consider purchasing Pass Ports. Go ahead and get passports. When they come back it gives you something to look at rather than doing that packing and unpacking thing again. And you know the time is getting closer.