I first encountered the phrase (best version of yourself) reading a book by Mathew Kelly (Dynamic Catholic), a blog, in copy of an earlier book REDISCOVER CATHOLICISM, a  present from the local parish for Christmas 2015. I later encountered the same phrase in another book by the same author published earlier that same year, REDISCOVER JESUS. While the first book was a major disappointment, the second was inspiring, none the less because Kelly uses quotations from the New Testament throughout. 
    He states unequivocally that he had come to an impasse in his walk with the Lord before writing it, partly due to his disgust with things going on in the church. 
    This is FYI. I have thought about that phrase and think that the "best version of yourself" is still not good enough. Let that self die and be born again in the Spirit and it will become clearer what it means to be a saint. It is a work of God.