Translation of advisable in Spanish

I thought it would have been nice to meet each other in person. Do you prefer to teach adults or children? Of course, I want to learn more English and I can help you to learn more German.
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...
If you want we can exchange messages and emails in English and Spanish in order to improve and get some exercise. I think we should correct each other's messages. i need to practice otherwise I will forget everything.