Tips before attending

I have already been accepted to American but I was accepted last year for spring 2016 so I will start this January. So I’m in the middle taking the placement test and going through the housing contract and I wanted to get the opinions about how to prepare. If there are any current students that have some tips about dorms, what to bring, what to do your first few days, whats the best meal plan and any good classes for first year, that would be very helpful. If any parent have any thoughts on the matter your input would be helpful as well.