Flashcards get you words. Getting used to the sound of the language takes hours of listening, and these are the two things I keep going back to.
realpolish.pl · also on Spotify and YouTube
Piotr records in Polish, slowly and clearly, about culture, history and ordinary life. The idea is comprehensible input - you should understand most of it and be stretched by the rest, which is a very different feeling from being lost.
The episodes are free. Transcripts and the extra study material are paid. I got a long way on the free episodes alone, so start there and decide later.
youtube.com/@Ratio_viva · also on Spotify
Not a learning channel at all. Nikodem makes short videos about psychology and the thinking errors behind everyday decisions - made for Poles, at Polish speed. That is exactly why it is useful: real pace, real vocabulary, nobody slowing down for you. Closed captions are on, so you can read along when your ears give out.
Free, no account, works offline.