What to bring on a 6 day cruise and 4 days in florida?

I’m going on a cruise on saturday and i leave tonight to go to florida. I still don’t know what to pack and I’m leaving in 3 hours. I’m 14 and i want to go into the teen club thing but is it scary to go in by myself? Also is anybody else going on carnival inspiration this saturday to the cayman islands and cozumel mexico? Please give me a detailed packing list and give me some info on the teen club. Thanks.