24 year old girl looking for accommodation near UPMC, ENS

I am a second year masters student in neuroscience at UPMC and ENS universities. I am originally from Italy (Verona) but I have studied in London for the past 3 years. . I was looking for a room in a shared friendly apartment/house (ideally with students) near the 5th arrondissement. I love swimming and hiking but especially travelling. It's my first year in Paris, and in fact in France, and I really want to make the most of it by joining different gruops and activitieas and organising weekend trips in the neighboring cities. 

Cheers,

Anna