God's Will vs. My Will

So many times in my Christian life I have made decisions based on my own "commandeering" of God's will for my life! Meaning, if it is what I wanted, surely it must be God's will. Have any of you ever done that? For many years I was part of Christian sect that taught that Jesus' will can become a "reality" for you when you speak it into existence. This is an extreme example of the faith and prosperity "gospel" and continues to be taught and embraced by millions of wishful adherents. It never seemed completely right to me, but faced with a spouse with an incurable cancer and two young children, one still in diapers, my theology tended to drift to address my situation. I was told by loving brethren steeped in this teaching, that God surely wants my wife to be healed because "when Jesus came to Capernaum, he healed them all" and since Jesus is the same yesterday , today and forever, His will is to heal all today! This is called eisegesis where we read something into Scripture that it didn't intend to say. Certainly there were those in Capernaum who didn't get healed but the Bible language of the time uses "all" in a figurative sense. We know there were times in Scripture when all weren't healed. In John, he states that the whole world could not hold all the books that would be written with the deeds of our Lord. Again, this is language written in the idiom of the day to describe the breadth and depth of Jesus' ministry, but we read that figuratively. Some day when people read a book from the 20th century and it says "it was raining cats and dogs", will they assume it was truly raining small house pets? It is an idiom and not meant to be taken literally.
At any rate, getting back to God's will vs. mine, what is the best way to know how we should proceed? By looking at the author and finisher of our faith, Jesus! What did Jesus do when he was confronted with the reality of his impending passion and death? Did he rebuke the devil and bind the demons and commandeer his favorite Old Testament Scripture to obtain his "release" from the situation? No, he didn't. He quietly went before his Father in prayer; a pleading so earnest and intense that he sweated blood as he asked that this cup be removed from Him. BUT, He then prayed "Not my will, but thine."
I hope and pray for the strength to do just as Jesus showed us to do. In another instance He taught us to pray: "May Your kingdom come and your will (not mine) be done, on earth as it is in heaven."
Sister Faustina, a humble Polish nun who became the first canonized saint of the 20th century, showed us how to do this throughout her short life:

"Oh My God, I am ready to accept your will in every detail, whatever it may be. However you may direct me. I will bless you. Whatever you ask of me, I will do with the help of your grace. Whatever your holy will regarding me might be, I accept it with my whole heart and soul, taking no account of what my corrupt nature tells me."