Your goal is not to know every detail of the future. Your goal is to hold the hand of the One who does and never, ever let go.
The next time you're disappointed, don't panic. Don't give up. Just be patient and let God remind you He's still in control.
I'm thinking, "What difference will this sermon make in their lives tomorrow? What am I trying to give them that will make a difference?" For example, had to do with the theme that Jesus will not let go of you. He's holding onto you. I talked to them about the disciples and Peter on the night before the crucifixion of Christ - how Jesus said that all of you are going to turn away, but He would be waiting for them in Galilee.
