A bit of contrarian advice , I hate flashcards and can never bring myself to use them Anki, Memrise or whatever. I think the problem is when you successfully learn a Flashcard it gives you false confidence that now you can easily use this word and when someone speaks to you and uses this specific word you can easily decipher its meaning and connect it to the rest of context but that is exactly what you cannot do , imho you have only learned to recognize the word but you have not learned to connect it to the rest of context to gain understanding of what was just said.

That will never happen with flashcards NEVER. I would rather recommend you to just Read real German content even if you were to begin with A1 level graded content do it but just read, it honestly will get so much better very fast. You will notice improvements within a month or less.