8 years is certainly more than average, although expats not learning German is common enough to be something of a meme. Anki works. I learned German using Anki

8 years is certainly more than average, although expats not learning German is common enough to be something of a meme. Anki works. I learned German using Anki. I recommend reading texts and making a card whenever you come across a new word. That said, the most valuable thing is just to integrate German into your life. If your use of German is limited to Anki decks, then you'll have to keep using Anki for the rest of your life just to remain fluent. I doubt you want that. Instead, think about the things you like to do. Try to use German when doing those things. Try to make German friends and converse with them in German. If you like to read books, try to read books in German. Try to make German something that has real value for your life.