Translation of Mechanik

For example, if I am working very early in the morning, let's say 06.00 (that would be 09.00 your time), I don't notice it much. But 9 hours later, the system slows down, because people in Europe get online.
My name is Wolfgang, and I am interested to build my Spanish vocabulary. Maybe we can practice together. How long have you learned Spanish? I have been learning for a few years with books.
I am 73 and I am learning German because my grandchildren do not speak English. I am learning at the Goethe Institute in London. One last question: why do you want to learn Spanish? Many greetings.