So you're leaving the classroom... How else can you learn German you ask? Well here are some ideas. You don't need to do them all, just find your own style. Some are mine, some have been crowd sourced and of course, if you have more ideas, let me know!
Several sites offer language learning opportunities online. Here are some ways to learn by watching and listening native speakers.
Apps:
DuoLingo - It's a start
I don't like Rosetta Stone
Lingolette - AI generated conversation/chat partner and other activities to give instant feedback
ImmerseMe - AI Virtual Reality - Costs money - I do not have an opinion on this one
Books:
Buy a book on Amazon in German, like Harry Potter or fairy tales they sometimes have dual language books
Spotify:
You can listen to Audio Books here - I'll see if I can find recommendations
German music: Playlists Top 50 Deutschland, Deutsch Pop-Pop, just careful, lyrics can be explicit
Radio.de:
Live radio stations from Germany, the commentary is all German but lots of English music
Netflix & Disney+:
Change movie language an/or subtitles to German
Netflix has some original German shows as well, just be careful on content