Translation of marvelous in Spanish

I am Spanish Teacher. I graduated last year, in August. I studied mostly in Germany. I have been working for nine months as a teacher in many language schools but soon I will be a student again.
You don't speak Russian? It's not so easy to speak this. I think, my English isn't very strong at all. But I hope to improve once I have the chance to write someone whose mother language is English...
My daughter is 12 years old and my son is 6. They are both in school. It is so beautiful to see them grow up, but time passes too fast. I wish you also a lot of happiness. Best wishes form Austria.