Translation of alias in German

My mom and dad used to speak English when they wanted to say something I shouldn't understand. In this way I have learned English. I did not tell them till late, but I did understand every word they said.
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 planning to work at the moment for the next 3-4 months, but I will accept another project and I will work during the holidays. Therefore, I want to offer you to stay in touch all the time.