Verb conjugation of "amortize" in English

Dear Maximilian, I look forward to your visit in Switzerland. After a somewhat difficult start, it seems that we have increased the website traffic and we are starting to receive more visitors.
Everything in your letter is perfect! Almost no errors and the writing style, very impressive! After this first year in England, you have also improved your vocabulary and the grammar skills.
I attended a Spanish course in Malaga, but I need more practice and speak more often (and write of course). Here in Germany it is a bit difficult to learn Spanish because we do not have the chance to practice.