We are working a lot with the less families here and its so awesome!! Practically everyone has a wide knowledge of what they need to do, but the problem is the desire to do it. So what we do is teach the doctrine and show how amazing are the blessings that they aren't receiving.
Imagine that God is just sending us down blessing like rain, but sometimes our decisions make it like we are putting up an umbrella and impeding these blessings from reaching us. Put away your umbrella! Let God bless your lives and allow him to change your heart! He is the only one that is capable of making this change in our lives, but we are the only ones capable of allowing him to do it! What is stopping you from allowing the blessings from heaven change your life?