Use the information were provided to help decide whether or not you really want or need a roommate. Try to communicate with your roommates. Do not keep things bottled up inside. If something that your roommates have said or done bothers you, then tell them. Your roommates are not clairvoyant, therefore you should not expect them to know what you are thinking at all times.
Effective communication is the key to getting along.
Go to college with an open mind. Get to know your roommate and others around you on a personal level. Do not judge or categorize people by their clothing, race, religion, or nationality. College is designed to broaden your horizons, so don't limit yourself by only associating with people just like you. Branch out, perhaps you will learn something about yourself.