What can i expect?

I am a 15 year old, first-time cruiser and I am goin with my best friend and her parents to Cozumel. I'm not even sure what ship it is. I would like someone to give me an idea, if they can,of what to expect. I know I didn't give you much to go on here but I'm pretty clueless. My friend went last year and said that we would probably not be staying with her mom and dad. That is fine with me but I just want an idea of what type of things we will be doing. If anyone has any information, please fill me in. Thank you so much!!
-K789

[LisaK]

If i were you i would do some research, find out at the very least, which ship you are sailing on and what your ports of call are. That way you would have some general knowledge and you could go the the ship's website and surf around for all kinds of great info.
A cruise ship is basically a floating resort hotel. There are pools to swim in, sports and games to play, teen activites to join into if you want, lots of food and fun.
You mentioned Cozumel - great snorkeling, dolphin swims, Mayan ruins to explore and really nice beaches.
Also you will need a notarized letter from your parents allowing your friends parents to take you on this cruise and to get medical help for you if needed.