When you receive new teaching and recognize it as truth, do not eschew the old.  It served a purpose for you.  It got you to the point where you were ready to receive the new teaching.  Do not feel that all around you need to be where you are in your understanding.  All are in their version of truth in this ever-present moment.  Truth is ongoing.  Coming into alignment with the highest possible truth happens by grace or through an incremental process.  Whichever the case, enjoy be-ing and being where you are in this moment now.