21 year old student looking for accomodation in Geneva

Hello! I am Luiz, from Brazil, and I have just finished my undergraduate studies in International Relations. I am starting my graduate studies (MA in International Affairs) at IHEID, in Geneva, at the beginning of Semptember 2020, and the shortage of housing options in Switzerland is really freaking me out. I have applied for a room at the Institute's residence but unfortunately I wasn't succesful. I am now looking for other affordable accomodation options (CHF 500 - 800), what seems to be very tough in Geneva. I am a responsible and organised person who is also open to diversity and can adjust very well to different people and backgrounds.