23 years old girl looking for accommodation in Milan next to Via Giovanni Celoria

I am a polish girl who is coming to Milan to study Molecular Biology at the UNIMI. I do not smoke nor have pets. I am looking for accommodation close to my department (Via Giovanni Celoria or Via Camillo Golgi). Can be also something further but maximum 30 minutes away by bus or metro. I am planning to find a job in Milan so probably I won't be at home really often. I have lived in a dorm for the past 3 years so living with someone in the same room wouldn't be a problem. I would prefer for my roommate not to smoke in the room, except that I am cool :) If I have a free time I read, watch Netflix or hang out with my friends. I like meeting new people and currently, I learn Italian to be able to communicate :D I prefer to move in at the end of September but if it's necessary I can pay for this month to keep the place. I can spend a maximum of 500 euros including bills and preferable internet in the price.