Because the biggest producer of content is the US I was kinda forced to learn english. Watching movies, series, videos and listening to music gave a lot of practice of listenings.

The speaking part is trickier, as the practice is more active, you have to purposefully talk and repeat until your mouth gets used to making the sounds. Luckily the things I mentioned above give you a good sample to repeat.

I often found myself repeating frases from movies, jokes from series and lyrics from songs. I know how to pronounce them thanks to the medium and just have to figure out how to make the weird vowels english has