tv shows!!! i can't stress this enough, watching people engage in the language helps so much. after doing french for years and graduating with a delf b2, i give all credit to the fact that i was put in an immersive environment where french was always spoken around me. you can start with children's shows like Téléfrançais, and then move to your favourite show dubbed etc. that being said, nothing beats talking in french...so if all else fails, meet some french speakers to chat with, or maybe temporarily move to france 😄
i wish you the best of luck!