21 year old male, looking for accommodation and roommates in Madrid

Hello! I am an American college student studying business at the University of Minnesota and will be moving on January 17th to Madrid to study the second term at UC3M.  I am looking for an apartment that I could have my own room in, preferably near Atocha or the center of Madrid.  I would be able to move in as little as the 18th, but would be able to stay at a hostel initially if the room would not be currently available. While I currently know little Spanish, I think it would be great to have roommates that can speak Spanish and help me out with mine, and if they desire to learn English, it would be mutually beneficial! 

Mainly looking to get a fun time out of Madrid by meeting new people and going out/partying. Let me know if you are looking for a roommate and we can talk things over! I am on social media as Reid Thomas.