I am looking for accommodation in Berlin

Hello,

I am Zehra Batmaz, 23 years old and I am currently attending a language course in Berlin in the Gartenfelder district. I would like to find an apartment close to my course and I would really appreciate your help. I am an organized and responsible person and I also like to have a good relationship with the people around me.

Features of the Apartment I am looking for:

Single person or small apartment
Internet connection and heating is a big advantage for me
I would be very happy if electricity and water costs are included.
My maximum budget is around 400 euros
If you have information about such an apartment or if you think you can help me, please do not hesitate to contact me. Your suggestions are very important for me.