Is the Duolingo translating practice still an option? I'm not seeing it anywhere...
There is a help article that covers this very topic: https://support.duolingo.com/hc/en-us/articles/115000425806-What-happened-to-Immersion-
The post it links to may take ages to load though.
Edit: In fact it will probably timeout and give a 404. It does for me. YMMV