As was said, the program is laid out for you at any pod school. There are essentially no electives or selecting of courses. You will automatically be enrolled each semester based on the program outline (
student handbook pages 13+). The only way a student would have a schedule different from their classmates is if they failed or withdrew from a class and entered the extended program; that's a more complicated situation because, depending on what course wasn't completed, the extended students might be missing pre-req for various subsequent courses. Those situations are all covered in the handbook also.
A full summer semester is mandatory for every pod student at Barry, but that's not the case at every pod school. Some schools have lightened loads in the summer and some schools have significant portions of the summer off. That's just differing curriculum between the schools, but it's also the reason you can't remediate an abbreviated version of a failed class during the summer at Barry as you can at some other pod schools (you just get switched to 5yr track and repeat any failed class the next year).
You will have summer classes at the start of your second year, summer classes and clinics at the beginning of 3rd year, and summer clinics and externships at the beginning of 4th year. You do still get at least a couple weeks off between didactic semesters. Clinical work gets a bit fuzzy depending on your assignments, but you still get some breaks.
As for housing, if you read down this forum a bit, I've addressed that question a couple times. Barry pod c/o 2010 is also sending incoming students some housing tips and leads...