Is it Wisdom or Just a Lack of Faith?

For years I've wrestled with the relationship of wisdom and faith.

Is it wisdom to stop having more children due to a risky medical condition, or is it just a lack of faith?

Is it wisdom to acknowledge our limitations and so not adopt a special needs child, or just a lack of faith?

I live like an atheist! How can I honestly claim to believe in God's sovereignty when I don't trust Him with anything I consider difficult? When I fight to have things my way, how can I claim to believe that God knows my needs better than I do?

I am no man of faith. But I can be a man of repentance, and cry out "help my unbelief!" This, I think, would be true wisdom.