Verb conjugation of "stricken" in German

Since my wife is pregnant, we must postpone the trip until tomorrow. I am back again in Poland in June and then I would be very happy to meet you. I will email the exact dates a little later.
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.
Which region in Germany are you from? I live in Aarau in the state of Argau, that is in the middle of Switzerland not far from Zurich, Lake Zurich and near the border city of Basel.