Studying and living in a different country and new city can be overwhelming and overcharging sometimes.
Here you can find some information that can help you to get in contact with people easily:
The Buddy Program is an initiative to bring together students from Mainz and international students.
The Welcome Center for international students is the point of contact for visiting scholars and their families. They can assist you as a service and information center in the planning, preparation and realization of your research stay/ period.