Translation of entjungfern

I have contacted you 12 months ago to propose your school's inclusion in our language school directory. I wanted to inform you that our site achieved high positions in search engines last month.
I've been working on and off on the dictionary during the entire week, and I'll spend some more hours on it this coming weekend. Sometimes he would get a bit mixed up and use formal Castilian sometimes instead of informal.
Hello, my name is Rick and I come from Mexico, I live in the capital Mexico City which is located in the center. I speak Spanish and German as my mother tongue and I can help you with either one.