Translation of shutter in Spanish

I wish we can meet when you come to Malaga, and we can have a nice time together and I can cook nice Spanish food for u too. C u soon. I hope you are fine, was just waiting for your email but maybe you are busy.
I understand that you use the article 'die' when talking about a feminine object, das when the subject is neutral, and der when talking about a masculine object. But how can you remember all these?
The same night we went to a great restaurant in town (near the main street). We met a very friendly couple in their fifties from Buenos Aires. They told us many interesting stories about Argentina.