Completed but can't finish?

[CDReckless]

This may seem really silly, but I can't, for the life of me, figure out how to end either a tutorial or even a regular single mission! I've completed the main objectives and then just sail around forever. If I quit, then I don't show as having completed the mission or tutorial. I know that I'm doing (or not doing) something incredibly simple, but I can't figure out what.

[CDReckless]

OMG, never mind. I knew that it was something stupid. I never clicked on EXAM. I just kept playing the tutorial over and over. I guess that would help.
Too bad the games tutorial is the exact same as the EXAM. Makes it kind of hard for us idiots out there.