My sweet and beautiful daughter, Melinda, is a busy homeschooling mom to three busy little boys. No one I know does more or works harder, but she runs in a near-constant state of overwhelm, and the enemy likes to bring whispers of "not good enough" against her.
Yesterday I prayed that the Lord would provide encouraging words, and then wrote an email to my daughter. When I reread what I'd written, I realized He had answered my prayer, as it was quite definitely not of me, but of the the Lord.
Here is that message to Melinda with a prayer that it will encourage weary caregivers as well:
Just walk the path before you. It is the striving and reaching that increases one’s strength. Don’t give way to discouragement, and don’t listen to the enemy’s tiresome “you’re no good” litany. Praise and thanksgiving sensitize the heart to those golden moments that are touches of Heaven on earth, and simultaneously silence the enemy’s nonsense.
The Lord is with you. Your shortcomings, inadequacies, and failures in no way impact God's power, provision, and perfection. He is not only your God, He is your partner in your prayers, work, desires of your heart, and most of all in your love for your children. You are not enough, but God is.
His power is made perfect in weakness. Fall back into His arms not in that you stop trying, but in the sense that resting on His strength will imbue your strivings with Holy Spirit power. Specifically, this looks more like trusting rather than additional Bible reading or study; it is an attitude of the heart. But do read/study/absorb God's Word. It is your strength-giving power for this season of your life.