Looking for a room to stay while in college

Soon I will be moving to Manhattan for college starting in the fall this year, so I decided to get a head start in looking for some rooms to stay in during that time. I figured renting out a room shared with other roommates would be much cheaper than paying for a dorm. About me; I am a very laid back person and am very low-key so there would not be any problems with me. I like to stay clean and do a pretty good job at it as well. And lastly, I am a very hard-worker and am focused. I am hopefully looking for a clean well-maintained apartment for my stay. Preferably a private room, but the rest can be shared. As for gender, I don't have any preference, I just need a place to stay during my college years. Preferably my roommate/s age is around mine; 18-28. Also I prefer to be contacted through email first.