Faith without some form of doubt is just arrogance. If we don't doubt things at some point how can we ever be sure of anything?

Hebrews 11:1 Now faith is the substance of things hoped for, the evidence of things not seen.

What you want might make you cry
What you need might pass you by
If you don't catch it
'When it hurts so bad' by Lauryn

Jeremiah 29:11
For I know the plans I have for you," declares the LORD, "plans to prosper you and not to harm you, plans to give you hope and a future.