Please take the time to read these very wise words from JC Ryle's sermon on parenting:
"Without the blessing of the Lord, your best efforts will do no good. He has the hearts of all men in His hands, and unless He touches the hearts of your children by His Spirit, you will wear yourself out for nothing. Therefore, water the seed you sow in their minds with unceasing prayer.
The Lord is far more willing to hear than we are to pray; far more ready to give blessings than we are to ask them--and, oh, how He love to be petitioned for our children. And I set this matter of prayer before you, as the capstone and seal of all you do. I believe the child of many prayers is seldom cast away.