If you want to study in Germany, take a look and see if you can find some kind of scholarship from the DAAD https://www.daad.de/deutschland/stipendium/datenbank/en/21148-scholarship-database/

Anyway, I can assure you that at least the semester fees in Braunschweig are quite low (~€300 per semester) and you can probably find some WG room to stay for around 240€ a month.
It is not so expensive, and also as a student you could work part time in Germany (probably depends on your visa), that may also help.