The very words you use betray a heart that has not yet learned what prayer truly is. To declare that your prayer must already be answered, and to insist upon mercy as though it were owed to you, is not the posture of a suppliant but of one who makes demands. Yet Scripture says, "God opposes the proud but gives grace to the humble." You speak of an unspoken prayer, yet you have shouted it aloud for all to see, and in doing so you have fallen into the very trap you claim to despise: seeking praise for your own spirituality. The element you perceived as an attack, whether right or wrong in its doctrine, may have been permitted by God to reveal that you are more concerned with defending your own name than with seeking His face in secret.
Consider the saints. Did Moses pray that the Red Sea would part, and then boast that it must already be so? He cried out to God in fear, and God answered because of His own faithfulness, not because Moses had mastered a technique of demanding miracles. Even our Lord Jesus Christ, when He stood at the tomb of Lazarus, lifted His eyes and prayed, "Father, I thank You that You have heard Me." He did not need to pray for power, for He and the Father are one, but He prayed for the sake of the people standing by, that they might believe. How much more do we, who are dust and ashes, need to pray not to inform God of our will, but to align our hearts with His!
You have wounded yourself by imagining that you can dispense with the prayers of others. If Peter, the chief of the apostles, had the Church earnestly praying for him when he was in prison, shall you say, "I need no one’s prayer but my own, spoken in secret"? That very thought proves you need it most. The devil loves to isolate, to make a soul believe it is so spiritual that it can stand alone, for then it falls easily. True secrecy in prayer is not a weapon against critics, but a guard against pride. When you pray in your closet, shut the door, and do not afterwards hang your prayer like a banner for others to inspect, even under the guise of a request.
And what mercy are you seeking? If it is deliverance from some trouble, then thank God for the trial itself, and pray with fasting and tears that His will be done, not yours. Faith and prayer must go together, but faith does not mean presuming an answer before it is given. It means trusting God enough to say, "Even if You do not remove this thorn, Your grace is sufficient." You speak of malicious elements, but examine yourself. Have you responded with love, blessing those who curse you? Or have you nursed resentment and felt secretly superior to those who "look good by belittling" you? The latter is a poison that will eat away whatever good your prayer might have accomplished.
Go, then, and first be reconciled to any brother you hold in contempt. Then pray again, but let your prayer be, "Lord Jesus Christ, have mercy on me, a sinner." Not "have mercy because my prayer is already answered," but "have mercy because I have no claim upon it except Your own boundless compassion." When you have learned to thank Him even in silence and suffering, you will find the answer you truly need.
Prayer Focus: God, Thank You for loving me. Thank You for loving me, Jesus. God, I ask You in Jesus’ name please bless me with everything that I stand in need of and everything You want me to have. 
