When I tutored many guys and ladies Greek in grad-school, I always found the inductive drilling of flashcards, paradigms, and grammar learning
to be very backwards to how we actually learn languages. Of course, one must do a bit of this to get started, but one is started and seeks to maintain their language skills, using the language and learning in this way is more practical than "going back through a grammar" - as I have heard many students say they would do, and never actually do... I learned Ionic and Attic Greek deductively, and now Greek is much like riding a bike. All that is to say, check out this blog post and take it to heart!