More "active" learning
Is there any way to increase the proportion of "English to Italian" translation questions? I want the course to be more active Italian writing and less passive Italian listening.
Yes, you can.
Start the "reverse tree" the course "English for Italian speakers"
Duolingo uses a very good teaching method for beginners and for people, who want to brush up their school knowledge.
In the course "Italian for English speakers" you are learning the grammar and the pronunciation. You will mostly translate from Italian to English and the user interface is in English.
In the "reverse tree", the course "English for Italian speakers", you will mostly translate from English to Italian. The user interface is in Italian. And you can start to read (and write) in the Italian discussion forums.
(set the microphone and sound to OFF in Duolingo's settings)
In the "laddering trees" you can do "Foreign language 2" from "Foreign language 1" and reverse (if available in Duolingo).
There is a course "German for Italian speakers".
How do I switch my Duolingo course language?
Pentaan is right. You can start the English from Italian course at any time. I recommend installing the Tree Enhancer userscript: https://www.duolingo.com/comment/19654789/Userscript-Tree-Enhancer
Use userscripts at your own risk.
Unofficial third-party userscripts intended to enhance the Duolingo experience. These userscripts are not endorsed by Duolingo and may cause unforeseen problems, so exercise caution before installing them.
If you experience a problem with a userscript deactivate it immediately, and try to contact the author of the script directly to see if it can be fixed.