Here's a message from the Fast from Wrong Thinking site...hope it helps:
When things don't go our way, we tend to THINK, that the good that we're doing is not accomplishing anything. The devil gets us THINKING that God's Word works for others but not us. When we believe that "It's not working," we adopt a mindset that blocks us from continuing to do the right thing. And that's when we lose our harvest.
You see, it's not that it's not working, but it's that we stop "working it", which is what stops our progress.
When we do the right thing, the devil loves to get us to think, that it didn't do any good, and nothing will change. When we forgive someone, the devil says, "that didn't do any good." When we give an offering, the devil says, "you won't get a harvest." When we pray, we hear the thought that says, "God didn't hear that; or He won't answer that."
When my kids were little, I would sometimes wonder, "Is praying over them every night working? Is disciplining them working? Are the kisses and hugs and long talks working?" But I kept doing it because I thought, "God's Word is true and IT WORKS." Today, as my four oldest children are all teenagers, who love God and love their parents, and love each other, I realize IT WAS WORKING all the time. If I would have thought it wasn't working, I would have stopped acting on the Word. That thought would have defeated me.
Today we turn the tables on these thoughts.
1. Keep sowing the right seeds.
"Don't grow weary, in doing good, for in due season, you shall reap, if you do not faint." We need to believe that if we don't give up, we will get our harvest.
2. Understand that "growing weary", or "fainting"/giving up, begins in our minds.
Hebrews 12:3 says, "consider Him who has endured such hostility against Himself, lest you be wearied and faint in your mind." See, giving up starts in your head. As soon as we think that its not working, that's when our bodies respond to those thoughts and our life gives off negative energy, which defeats us. IN YOUR MIND, you have to start thinking, "IT IS WORKING!" And then, positive, life-filled energy is produced.
3. Believe that God is at work in you right now.
"He is all the while in work in you both to will and work for His good pleasure." (Philippians 2:13) If He is working in you, things are going to work.
4. Let this penetrate your thinking: THE WORD WORKS.
Jeremiah 1:12 says, "I am watching over My Word to perform it." Believe in the integrity of God's Word.
5. Believe: PRAYER WORKS.
Jesus said, "Whatsoever things you desire WHEN YOU PRAY, believe that you receive them, and you SHALL HAVE THEM." Mark 11:24.
6. Don't let the immediate feeling or appearance trick you.
Things start working the moment you act on the Word of God. 2 Corinthians 5:7 says, "For we walk by faith and not by sight."
7. I love this verse in Ecclesiastes 3:11 which says, "He makes all things beautiful in His time." It's going to work out, if you trust and let His timing come to pass.
THINK IT & SAY IT
Things are working. I may not see them working right now, but God says they are.
I am sowing the right thoughts, therefore my life is changing. I am sowing the Word of God, and it will not return void.
I will not give up in my mind. I make up my mind to believe IT IS WORKING.
God is at work in me, and He is bringing His will to pass in my life, even now as I surrender my thoughts to Him. As I sow the Word of God in my heart and mind, God is watching over that Word, to bring it pass.
Whenever I have the thought that prayer doesn't work, I will replace that thought with Mark 11:24. I walk by faith - by believing what God says.
I will not allow the appearance of something trick me into thinking that God's Word is not working.
The Lord is making things beautiful in my life, no matter what things look like right now.
In His faithfulness,
Gregory Dickow