Nice, full of light and calm shared flat for a student

I am a master student at tu dortmund university and it will be my first term, I'm female, 34 years old and Iranian. Actually, I can talk English and Persian but I can't understand German yet, however I'm trying to learn. I'm warm, friendly, easygoing, welcoming and optimist. I want to find a nice and quiet shared place for different reasons:
- At first, I don't like to feel lonliness.
- additionally, I'm coming to germany for the first time so I need to connect with other people, know the culture better and find some new friends.
- when I would arrive there I don't have an income but I have a block account there which supports my expenses for whole one year, although I'm sure that I will find a job soon.😊