"The grass withers, the flower fades, But the word of our God stands forever” (Isaiah 40:8). Do you believe it? Can you trust it? What other spoken or written word carries a forever stamp? Can you point to where God has failed you, or where he has fallen short on his word? Be honest with yourself and with God. You may just find that what you may have counted a disappointment or failure on God's part, is God's Word in action and your blessing in disguise. 
Blessings!