21 year old German girl looking for accommodation in Lisbon

Hello there! My name is Michelle, I'm 21 years old and I'm currently in my 3rd year of studying Business Administration at the University of Mannheim. As I will participate in a student exchange program with the Instituto Superior de Economia e Gestao (ISEG) from September 2017 until February 2018, I am looking for a nice place to stay in Lisbon, ideally located near the university. I prefer a shared flat, either with other Erasmus students or with locals (wouldn't hurt to improve my Portuguese language skills;)) I am an open minded, easy-going person, who loves travelling and meeting new people. I am looking forward to hearing from you soon! :)