Translation of Aufführung

I will be visiting in Italy from April 10 to 15 in order to meet some old friends. I'd like you to attend a one-day course, maybe I can help you in learning something new. Please give it a try.
And in the end you still have not learned what you have wanted. I browse in online stores all day and come back empty-handed, or with items that I do not really need. Learn and think about it.
Thanks for the corrections and for accepting my friends request. You are completely right: Spanish grammar is simpler than German grammar. I was just looking for a job where both languages are required.