Verb conjugation of "assure" in English

Good luck and success in this new job. Please tell Anna that this morning I had a great Capuchino coffee and I had to think of her. The aroma reminded me of our vacation in Northern Italy.
My correction were added and highlighted with yellow markers and attached to this email. Tell me now if you have any questions about grammar rules, since I was a teacher 10 years ago.
I really would like to invest more time here but until now I was too busy to keep my promises. Maybe I should take a vacation and go back to Scotland and take another language course there.