Doubting whether or not I'll hear God

So, back to James 1:5-8. As I replied to Christina, I often wonder whether or not God will answer my prayer as I want Him to. But even more frequently than that, I wonder if I will hear God when he does answer my prayer. I so often feel like that "wave in the sea" when I trying to make a tough decision and I "cannot decide about anything". I ask God for wisdom, and I ask Him for clarity, but then I doubt my ability to hear Him. I think part of the problem is not taking time to "be still" before God. But even when I'm still, I still doubt.