23 years old Bangladesh Masters Student looking for cheap accommodation

I am Yusuf Naeem, a student from Bangladesh. Recently I have got an offer letter from Frankfurt University of Applied Sciences, Masters in High Integrity System (HIS) for the upcoming winter semester. I don't have that much time left in my hand and I still haven't managed any accommodation. Since I am new here, I am badly in need of accommodation.  I have already applied for several dorms but still haven't got any satisfactory reply, in some dorm, I am in the waiting list and some dorm price is really high and expensive for me.  I am really worried about my accommodation. I will be very grateful if someone can arrange a room for me from October 2019 at a reasonable price.