I think it's worth it, if you're already at a B2 or high intermediate level why would you stop learning now.
I can't speak about Russian, but I've been learning spanish for 3 years. For the first year I learned the basics and became conversational in the language, the last two years have been marked by long frustrating plateaus, and it seems like I'm regressing, but that's just the process of learning. It's all seeping into my brain.
I would make it a point to tell native speakers to talk with you as they normally would with their friends or family. It helps your listening comprehension tremendously along with podcasts, also read as many news articles and books as possible as this is the best way to expand your vocabulary.
I can't speak about Russian, but I've been learning spanish for 3 years. For the first year I learned the basics and became conversational in the language, the last two years have been marked by long frustrating plateaus, and it seems like I'm regressing, but that's just the process of learning. It's all seeping into my brain.
I would make it a point to tell native speakers to talk with you as they normally would with their friends or family. It helps your listening comprehension tremendously along with podcasts, also read as many news articles and books as possible as this is the best way to expand your vocabulary.