Translation of Belgrade in German

I bought the ticket very quickly and ran to the gate. A stewardess was waiting for me and waved. She shouted that I should hurry up. I ran as fast as I could and entered the gate leading to the plane.
It is very different from bars and discos and nightlife. So it has also advantages, however the quantity and the quality of information circulating in the social networks worries me a little. A lot of it is garbage.
The course was a bit tough because the teacher always gave lots of homework. We were upset about his behaviour. He was very arrogant towards all the students. It was simply no fun to study there.