Might be opening a can of worms here, but I can tell you, I would prefer someone who has real world experience, and a proven tract record, than someone with just a piece of paper, and not real world experience.
School is GREAT, it has its uses, and that's why people go, BUT, for the time you are in school, there is someone out there putting in their 40+hours a week, learning in the REAL WORLD.
To do the things you aspire to do(Chef on a cruise ship, that is thread worthy in its' self), you will NEED that degree, no questions asked.Traveling the world via cruise ship is laughable, you WILL travel, you WILL get hours off, but you won't see the world(except through a porthole). I suggest that you read up on how employment in the cruise ship industry works before getting your heart set on it.
School will teach you the basics, the fundamentals, but the students that come out are only a good as the Chefs that teach them. I have had interns come to work for me so they can get their credits, I ask them to prep me 10lbs of mirepoix, and they look at me like a deer in the headlight. School doesn't always teach the sense of urgency that is MANDATORY in the industry. I have had kids that think it is OK to take 20min to put a salad out. . . .sorry, BUT SCREW THAT, if you can't make it, and make it up to my standards in under 4min, than I have no time to waste with you. On the other hand, I have had some students come through my kitchens that are gems. You KNOW that they have "it", the BIG DIFFERENCE: Prior industry experience.
For the time that you put into school, you are working towards one thing, and one thing only: A piece of paper. In certain parts of the industry, some folks don't give a rats ass about a degree or not, while other aspects won't even consider talking to you, unless you have that paper. It all depends on what you want to do.
Please though, for the LOVE OF GOD, read up on the cruise ship industry. . . I get the feeling you might be a little disillusioned by the whole thing, and not realize that you are working 7 days a week for the term of your contract(normally 6months, iirc). You are NOT scheduled days off, you are scheduled HOURS off. When the ship is in port, you STILL have to prepare fresh food for the floating city you are a part of. F&B is one of the most demanding(besides house keeping)jobs on a cruise ship. One of my best friends in life, has been a cruise director for Cunard for the last almost 7 years, the stories he could tell you would make you SERIOUSLY rethink your notion of cruise ship work. I go on cruises often(try to every other year, as it's the cheapest way to get home/stay on island/not bother family), you need to see first hand the work involved. OH, not to mention PAY. Your pay is largely dictated by where the ship is registered from. If the minimum wage in the port of registry is $3 an hour, they can legally start you at $3 an hour, plus room and board(hot racking and no privacy) . . . .. .. . all that said, it's up to you.
That paper, it can mean the world to some, but there are LOADS of VERY WELL TO DO Chefs that are all SOHK(School of Hard Knocks).
I am sure there are others that will chime in with their opinion, and hopefully she some more light onto your situation.