Translation of renunciation 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.
Thank you for your answer. Your correction in Russian has helped me. I'm glad to have found a Russian Vocabulix friend with Russian as the mother tongue. I will help you in Spanish, OK?
I studied art in Germany. I would now like to learn Spanish. Can you teach me a little Spanish? Many greetings from Ukraine. I live in a small town, near Krim, close to the Black Sea.