Translation of castaway in Spanish

I am from Los Angeles California, i live in Manhattan NYC, i like to photography and art. I am learning English for my work and I should have a study partner in order to learn English a little quicker. Do you agree?
Thank you for your kind mail. I guess that we are friends now! The last winter was extremely cold. Now in Summer the weather is nice. My English is terrible but i hope that you will give me a chance.
Unfortunately, I have never been to the United States, but I was in Mexico last year, that is close. Zurich is a very nice city, the people are friendly and the lake is very beautiful.