28 year old man, looking for a room in Milan

I am in search of a room in a flat in the centre of Milan, or close to the yellow or green metro line. I will attend lessons from Monday to Friday at ISPI International School. No particular request for the flat condition, internet, forniture or the number of flatmates. I am an Italian from Pordenone, not in an Erasmus program, but with similar needs. I would like to find a cheap accomodation for 6 month and study a lot for the master i will attend. I prefer to study in public places. I like cooking and having dinner with friends, but too much to study next year, so i imagine i will be more focused in my concerns.