It struck me today how appropriate this prayer would be to another vocation. For my future (hopefully) reference with slight modification:
Lord God, You have placed me as a father and leader in a family, but
you see how unsuited I am to meet so great and difficult a task. If I had
lacked Your help, I would have ruined everything long ago. Therefore, I
call upon You: I wish to devote my mouth and my heart to you; I shall
teach my children. I myself will learn and ponder diligently upon Your Word.
Use me as Your instrument — but do not forsake me, for if ever I should
be on my own, I would easily wreck it all.