20 year old girl, looking for summer housing for internship at TU Berlin

I'm a student from Boston USA interning at TU Berlin! I'm 20 and stuyding mechanical engineering. Here for the summer. I'm currently studying at Massachusetts Institute of Technology. I love to travel so hopefully on the weekends I will be able to travel to other parts of Germany. This is my second time in Germany- the first time was in January, when I came to Hamburg to teach science to high school students. I loved Germany so I decided to come back! I am clean, responsible, and enjoy cooking for myself. My hobbies include cycling, hiking, reading, and photography.