Those born of God, pray from our hearts because we love God, I don't see that as a sacrifice, I do it because I love him. I'm not sacrificing anything. I do it through love.
Yes it is, and by not sinning we are living by the will of God.
Yes, I don't know about dying to Jesus, but dying for Jesus yes we are to do that. The word of God puts to death and brings to life, because when we hear God's word, we turn from sin, thus we die to self. And this is what the Spirit does in our hearts he helps us to overcome sin and put us to death, and brings us to life in God.
The Holy Spirit was helping Paul to overcome his flesh every day, thus he was dying to self daily.
Once we are risen with Christ, we should be dead to our old lives, then the Holy Spirit will help up to overcome our flesh daily as we turn from sin, this is dying daily.
Paul said that we establish the law, and Jesus said that on the two greatest commandments hang all the law and the prophets. So by obeying those two, we cover them all. And that is the truth.