Hello to everyone here...

I really want to go on a cruiser to work on, but I am low at experience of how a cruiser works, so I am here to get some advices from you... My Croatian is bad, but, I can live with it.
My English is fluent, on both fields - speaking and writing and I don't have any problems with it. I know a basic Spanish, also.

I had 6 months of a bartender experience.
I had experience as a radio-host, 2 years, I worked on the marketing field for the local NGO, and also went on meetings with CEO's. I have good communication and management skills, as I was vice-president and a project coordinator for the local NGO. I held up some quite good presentations in front of 100+ people.
Also, I have some experience in photography.

I am 21 years old, and I want to go on a cruiser, to work. What do you think? Which position is best suited for me? And on which Cruiser line to go?