I am studying Italian. I notice meaningful improvement at about 250 hour increments. The major milestones were:
-
At ~250 hours I stopped listening to material directed at learners and moved to native content.
-
At ~500 hours I started working on television shows.
-
At ~1000 hours I felt confident understanding everything said to me in normal conversations in good listening conditions.
I’m at ~1250 hours now. Sitcoms and documentaries are perfectly fine. Interview programs and talk radio are also perfectly fine. I did a 2 hour tour of a museum today in Italian: perfectly fine.
There is still this veil of insecurity that rests on my listening comprehension, though. I would describe it as some combination of (a) needing a higher level of active attention in order to comprehend - relative to my native language - which means I can’t trust my mind to grasp everything relative to the social context if I’m not fully focused and (b) some background baseline insecurity processing social reality through my second language.
I will not stop listening systematically until I reach 2,000 hours, at which point I will do my best to assess whether residual problems with my listening comprehension are best handled by more listening to content, or whether I just need to live my life through Italian in order to finish the project.