you need a repetitive stream of natural language. then brain automatically analyzes it. usually, you pick one 30 minute to 60 minute video, and watch it every

you need a repetitive stream of natural language. then brain automatically analyzes it. usually, you pick one 30 minute to 60 minute video, and watch it every day, 6 days a week. make sure you take a break every week. you watch it to the point where you can mimic what they are saying as the video is playing. you don't have to know exact meaning of your utterance. but you already have some sense. then, you transcribe it on paper (you need to learn writing system by this time). maybe use dictionary to learn actual words. rehearse with the video. if have friends, rehearse with them. memorize it. move on to the next video. start with sitcoms then maybe news broadcast, reality shows (court shows are great), movies... video is just one example. if you're learning a language where you can't find suitable videos (there might be no production in the language), make friends who speak the language. record their conversations. play repetitively until you can follow along with a loud voice. transcribe.. etc.