So you have decided to study in Bochum? In that case, you should check out your accommodation options as soon as possible. Thanks to a large number of student halls as well as comparatively affordable rents, living in Bochum is relatively cheap.
Your financial situation as a university student, as well as your own priorities and preferences, will be the decisive factors when you go house hunting:
There are many questions, and the first one should always be: student hall or the housing market?