Translation of renewal in German

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.
We are currently processing the information that you gave us and I will get back to you in the middle of next week. If there are other Spanish language study materials we are always happy to get them.
I went to the desk of Aerolineas Mexicanas and postponed my flight by two days. I did not have to get prepared as I had done some homework before coming here. The backup plan was Isla Mujeres.