Cptofthehouse makes a good point. If you just show up and move in but can’t pay, you’ll be dropped from classes and kicked out of the dorms. If it’s after the drop date the classes will be recorded as withdrawals and you may even be presented with a bill for the fall semester’s tuition, room, and board. If that happens you won’t be able to enroll at another college until the ~$22,000 is paid. So it’s really in your best interest to find a school that you know is affordable and have finances lined up before you go to class. Unfortunately, American isn’t the one.
You can get a poli sci degree at a lot of schools. Are there any schools you can commute to from home?