I just got the confirmation that I passed two exams of my Computer Science study.
The math exam was quite close, the other one was much better (‘Formale Grundlagen der Infomatik’). Now I’m very confident, because I didn’t have that much time to learn and there were huge changes in my life at the time I planned to learn.
There is still one exam left in a month for this term, but this should be the easiest for me, it covers the basics of Programming.