3) Accomodation

All universities and highschools have there own student-houses (at social prices in relation to your (parents) income). This include appartements for families... There are also rooms for students (a "kot") available on the housing market.

Safety is very important and a list of adresses of safe rooms can be obtained from the housing service of the relevant university/highschool.

See also:
Erasmate is Europe’s short-term housing platform. On Erasmate you can search and offer short-term housing or sublet your accommodation.
Housing Anywere