I have to confess that I have never been 100% sure I have completely understood the verse seek first the Kingdom of God and His righteousness, and all these things will be added to you (Matt 6.33).
I have never thought of it as bringing to mind that God is here in the here and right now with me, and this is what I can seek. To live in the moment and know God is with me in that moment. The well being discipleship practice of being present is value added when we know that God is with us in that moment. It is not just seeking to live into this day, this hour, this minute, these few seconds, but to be mindful and know that God is with me in the pressures and gladness of this day, the ups and frustrations of this hour, the irritations and joys of this minute and the regrets and happiness of these few seconds.
Be mindful that all the benefits of the Kingdom of God are available to me always, and helpful perspectives of God will be mine.