You can secure your account with a credit card or a cash deposit.
You have untill May to make a plan about that. Here is some advice:
1. Plan your spending daily.
2. Keep track of alcohol purchases.
3. Don't charge any casino money, keep seperate.
You can have a great time and still keep your finances on an even keel
I think $500 each is more than enough. I allow $100 a day, and never spend that including shore excursions.
Of course I keep my gambling seperate.
Have fun but keep it real, and you can cruise again
So many people go "overboard" and max their cards, or stretch their finances with the excitement of a first cruise.
Is a good thing you are planning, just keep it in check and you get to go next year too