Translation of nationalization in Spanish

You can always write me and we can learn together any language you want. How long you have taken classes? Was it only at night or on weekends? Makes me wonder how someone can be so fluent in Spanish.
How is the weather in Hamburg? We have 15 degrees and some sunshine here in the south. I have some remarks on your mail. If you write again and if you wish, I can correct your spelling mistakes.
I hope there were not too many mistakes here. I have learned Spanish not a long time ago and I am still very insecure! Tell me please, where do you come from and what you do?