[simpletone]

> It doesn't feel like my Russian comprehension diminished, but speaking it is a struggle.

I didn't know you could 'lose' a native language that you grew up with til near adulthood. Maybe speaking has more to do with muscle memory and hence easier to lose than a somewhat passive skill like listening and comprehension. Makes me wonder how language is stored and processed in the brain. Are there two complete separate regions for speaking and listening? That feels a bit inefficient.