I found this article by Paul Tripp to be a good encouragement to me personally. It is entitled, 5 Signs Waiting Has Weakened Your Faith. I pray that it encourages you as well:
When God asks you to wait, what happens to your spiritual muscles? While you wait, do your spiritual muscles grow bigger and stronger, or do they become flaccid and atrophied? Waiting for the Lord isn’t about God forgetting you, forsaking you, abandoning the ministry he’s called you to, or being unfaithful to his promises. It’s actually God giving you time to consider his glory, grow stronger in faith, and grow in courage for ministry. Remember, waiting isn’t just about what you’re hoping for at the end of the wait, but also about what you’ll become as you wait.
So waiting always presents us with a spiritual choice-point. Will I allow myself to question God’s goodness and progressively grow weaker in faith, or will I embrace the opportunity of faith that God is giving me and build my spiritual, pastoral, ministry muscles?
It’s so easy to unknowingly revisit your belief system when you’re not sure what God is doing. It’s so easy to give way to doubt when you’re being called to wait. It’s so easy to forsake good spiritual and ministry habits and to take up habits of “unfaith” that weaken the muscles of the heart. Let me suggest some habits of “unfaith” that weaken us during waiting.