That's exactly what the Third Petition is for. ;-)
"Do you not flatter yourselves, Friends of the Cross, that you are, or that you want to be, the friends of God? Be firmly resolved then to drink of the chalice which you must necessarily drink if you wish to enjoy the friendship of God. "They drank the chalice of the Lord and became the friends of God" (Common of Apostles, Lesson 7). The beloved Benjamin had the chalice while his brothers had only the wheat (Gen. 44, 1-4). The disciple whom Jesus preferred had his Master’s heart, went up with Him to Calvary and drank of His chalice. "Can you drink of my chalice?" (Matt. 20, 22). To desire God’s glory is good, indeed, but to desire it and pray for it without being resolved to suffer all things is mere folly and senseless asking. "You know not what you ask (Matt. 20, 22)… you must undergo much suffering" (Acts 14, 21): you must, it is necessary, it is indispensable! We can enter the kingdom of heaven only at the price of many crosses and tribulations."