MSU housing

<p>Hi guys,
I will be enter MSU this fall semester.
Few seconds ago, I finished paid deposit and the site said next step is choosing housing(it will be dorm)
But I saw the housing policy something, it said if you are 20 years old or older than I don't need to choose dorm.
And I turn 20 on this December, so my problem is at first day of fall semester, I'm not 20 years old yet...
So I just want to pay one semester dorm and next semester I want to get own my place... Is it possible?
And which dorm is nice? Plz, help me guys. I'm really excited about studying in MSU and also worried... </p>