Translation of Größenwahn

In the that time of the year, when I used to go to school, I had to get up very early and leave the house at around seven o'clock in the morning. At this time it was still night, dark and cold outside.
Completely different education and lifestyle make us incapable of putting ourselves into their situation. Sometimes we regard certain acts or certain laws as barbaric while we ignore the surroundings.
The young women rowed towards us and tried to sell food and souvenirs. We were not interested and she tried to block us and prevent us from swimming back to our vessel. So we dove beneath her.