Surviving spring break?

I'm in college and am going to Myrtle Beach with my softball team mates for spring break. There will be a total of around 15 women sharing two ajoined hotel suits for a week. It will be a Friday to Friday trip and our luggage and equipment will be driving down in a van but we are flying and are allowed to take a backpack on the plan. Anyway, I was asking for any suggestions on how to survive this week with 15 women in a rather small space. How to keep my stuff organized, if you have any packing tips or tricks. I've never flown or been away other than summer camp. I don't know, I just feel lost on what to pack, what to do what NOT to do. Let me know please and thank you.

I realize this really isn't a question, I would just like any comments, tips, tricks, or advice, than you!