"For 3 months I was working as a stewardess on a private yacht cruising in the Mediterranean Sea."
Wow! I bet this job was a real experience. Even though you worked 17 hour days, I'm sure it was definitely worth your while. It seems like you have all kinds of work experience traveling abroad and working!
Jobs that are given the opportunity to receive tips are great. These jobs usually bring home a higher than average pay. In more expensive and fancy places, waiters and waitresses bring home a very healthy amount of money.
exactly! I was surprised how much i could earn as a waitress thanks to the tips! But surely this is not a kind of job for everyone.