Verb conjugation of "maximize" in English

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.
We have met over 20 years ago during our holidays. We live in Florida and are working both for a computer company. I fly several times a month. I wish you another beautiful Sunday afternoon!
This is a fantastic idea, I am learning German just since last year. I speak, write and read well, and I will improve soon. This site, Vocabulix, I'm visiting often and I am mostly online.