From my experience, if you already have proper vocabulary I think the best way to improve your fluency is to listen to stories told by the narrator and try to tell the story from your perspective, I mean practice how to move between verb forms and pronouns. Moreover, to achieve best results, you need to use your imagination while practicing. You also need to listen to such podcasts whenever you don't have something else to do like when travelling or walking down the streets, I can guarantee that by this way you'll pick up the accent spontaneously.

me too

If you want to improve vocabulary, Maybe you could read English fictions as much as you can. Of course, you need to choose the books that are suitable for your level.