I'm intermediate and I also want to be fluent enough to work at a high level in Korea. As it stands now, I can have conversations on a wide array of topics as long as no one gets too technical.

Funny story, Arirang mentions Mt Hallasan, so when I was going up Hallasan in a taxi I suddenly burst into that part of the song and it led to the wildest conversation with the taxi driver. He pushed my skills to the limit because he got technical but I laugh about that conversation every time I remember it.

I see you have some kidney stone issues in the comments here. Don't give yourself a hard time for not being able to do stuff right now, they're painful and a perfectly acceptable reason to be unproductive. But if you want to be productive you could passively listen to some Chinese content while lying down, music, a podcast, watch some YouTube. That's a part of how I got to where I am with Korean, a long-term pain condition. Because I have had it for so long I know that when in pain I don't want to learn Korean (that takes too much mental energy), but fun stuff that exposes you to the language is still beneficial for learning.