Translation of zwielichtig

When have you been to Italy last time? It is very far from Romania. My friends and I were all small children when we last saw each other and when we met again we were all adults. This experience was a very strange feeling, but we have overcome it.
The easiest way of writing sentences in Spanish and English is to communicate with other people by email or by chat. I found the different time forms quite in Spanish very confusing at the beginning and it was the most difficult part.
Have you ever visited the U.S. before and if so, where have you been in the U.S.? I've been travelling in California, it was very amazing. We have traveled by car. Here are my corrections.