Verb conjugation of "mixen" in German

Thanks again for your time. I attached my avatar, it is very similar to the previous one. I have guided the development of the website, and I feel free to share my knowledge with others.
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.
Which region in Germany are you from? I live in Aarau in the state of Argau, that is in the middle of Switzerland not far from Zurich, Lake Zurich and near the border city of Basel.