The tough part's just existing in a state of uncertainty, which is a very active thing. But it teaches us to pray to God concerning these choices and situations; and then we wait. We just wait, keep serving God and pursuing a relationship with him, abandoning our insistent need for control over what's going on in our lives. In His time, He'll bring us guidance and wisdom... be confident of that.
Look at the nations and watch— and be utterly amazed. For I am going to do something in your days that you would not believe, even if you were told.While this was a prophetic word to the Israelite people, I believe the bigness of God's plans for His people have not diminished. When you are uncertain and worried and grasping at the wheel, just remember that whatever God brings about will be used for His great plan for you, if you let Him.
There's one last tool in our spiritual toolbox that works wonders for these situations, and it's found in Philippians 4:7:
And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus.Other translations say "God's peace, which exceeds anything we can understand;" "the peace of God, which surpasses all comprehension;" and "God's peace, which goes far beyond anything we can imagine." The point is that God will give you peace that doesn't make sense from a worldly point of view, because you're trusting in the power of someone the world doesn't want to acknowledge. Pray for peace, and keep spending time with Someone who won't waste it. He'll lead you through in time.