Translation of reliability in Spanish

So you have taken a German course in the Ghoete Institute. Well, I certainly learned something with you, and your German is already a lot better than last time. I think we really did it.
Spanish is very important and widespread. I want to improve my skills with the help of Vocabulix and its users. I'll be there looking for people and I hope that my new efforts will be helpful.
Do you speak three languages? Wow? I'm sorry that I am writing to you just now but I have a lot on my mind at the moment. My daughter had a cold and the nanny, too. I needed to stay home.