Looking for accom and roomate in Berlin

Hey I'm doing exchange in Berlin in April and looking for accom and a roomate. I am from Australia. I cant wait to explore berlin and it would be fun to have a roomate who I can go travelling on the weekends with. I love sport and am trying to learn german. I cant wait to have a busy life in berlin and make the most of every day. I enjoy exercise, reading, travelling, idk what my hobbies are. Definitely get in touch and we can find accom together. I want to live in the city centre, i feel that will be more fun, hopefully near a park.