What did you worry about on your first cruise that seems silly now?
My friends reminded me recently about my first cruise. I was ridiculously worried that somehow I'd miss the ship departure from Astoria even though we had nine hours there! I insisted on staying on. They had to drag me off and even then I refused to venture too far away.
Since then I've gone on organized shore excursions as well as going ashore on my own and wandering around.