Cez

Jenny,  there is still time - cancel your cruise now ! You can avoid becoming cruise junkie and save lot of money in the future. It's too late for most of us :( but you can save yourself.
No ? Well, if you decide not to listen to those words of wisdom I would suggest following:
For the first time cruiser I would strongly recommend to skip specialty restaurants and just make sure that you have your table reserved for main dining room. Food there is amazing without extra cost. Do not overdo excursion - enjoy ship in port (at least once) where there is  less people onboard.
Since you have a lot of time before cruising  you can offset big bill and setup perfect vacation by booking and paying for extra packages on monthly bases.
Ex: purchase one excursion or package per month and if you find it cheaper closer to the sail date simple cancel and re-book it. You'll get extra money back on your CC!
So book it now and try to get drinking package and onshore excursion at discounted price (20-25%) by checking your cruise planer in 3 to 1 months before your sail date (especially during US statutory holidays). 
While cruising monitor your seapass (your key and onboard credit card) spending on your TV screen or by asking customer service for printout
Once you have all your gratuities, excursions and drinks prepayed, save some cash to offset unexpected impulsive onbord purchases - bingo, casino, shopping, pictures, spa etc. It depends your lifestyle  and discipline but 50-150 per day per person should cover your sanity while receiving your final bill.
Enjoy your cruise ! You'll love it !

Jenny,  there is still time - cancel your cruise now ! You can avoid becoming cruise junkie and save lot of money in the future. It's too late for most of us :( but you can save yourself.
No ? Well, if you decide not to listen to those words of wisdom I would suggest following:
For the first time cruiser I would strongly recommend to skip specialty restaurants and just make sure that you have your table reserved for main dining room. Food there is amazing without extra cost. Do not overdo excursion - enjoy ship in port (at least once) where there is  less people onboard.
Since you have a lot of time before cruising  you can offset big bill and setup perfect vacation by booking and paying for extra packages on monthly bases.
Ex: purchase one excursion or package per month and if you find it cheaper closer to the sail date simple cancel and re-book it. You'll get extra money back on your CC!
So book it now and try to get drinking package and onshore excursion at discounted price (20-25%) by checking your cruise planer in 3 to 1 months before your sail date (especially during US statutory holidays). 
While cruising monitor your seapass (your key and onboard credit card) spending on your TV screen or by asking customer service for printout
Once you have all your gratuities, excursions and drinks prepayed, save some cash to offset unexpected impulsive onbord purchases - bingo, casino, shopping, pictures, spa etc. It depends your lifestyle  and discipline but 50-150 per day per person should cover your sanity while receiving your final bill.
Enjoy your cruise ! You'll love it !

The wife and I being happily retired take cruises about 3 times per year. We go out of Miami at least once or twice per year. Had some horrendous experiences with off site parking companies in Miami in the past until we found JetPort Park & Ride Center of Miami. We've used them 6 times already and had great experiences with them. Would recommend them highly. Their website is www.miamiportparking.com and someone always answers their phone, 888-510-1317. No run arounds with these folks. By the way, I got a mailer from them saying they'll be opening a location to service Fort Lauderdale seaport and airport in January 2018.

This is for Allure of the Seas January sailing 
Never seen more than 20% for drink package alone. This is full 25%
US$ 41.25 per day. There is no more excuse to not buy it :)
2 drinks + 1 glass of wine + 1 coffee per day makes you break even.
OVERVIEW
Toast to virtually unlimited options on your vacation – wake up with premium coffee, tea, and fresh-squeezed juices, then keep cool onboard with non-alcoholic drinks and bottled still and sparkling water. Relax and unwind with premium and frozen cocktails, domestic and imported beers and a wide selection of wines by the glass.* Plus, enjoy a discount of 40% off bottles of wine under $100 and 20% off bottles above $100 in bars and dining rooms.
Each adult of legal drinking age assigned to the same stateroom must purchase this package. Price shown is per person, per day.
*All Beverage Packages exclude any beverages served inside licensed Starbucks® stores.

Ok, I'll end this mystery....$$$$$

There is only one RoyalCaribbean and plenty of TA wanting your business. What do you think- where do you find more perks. My favorite is the one that starts with cruise and ends with com. 
To maximise the offer and for peace of mind I would suggest 
1. Check TA online 
2. Call RCL
3. Call agent from your online TA