God's compassions never fail. God's love for us is unfailing. God's concern for us does not end. We also know that God's strength and power never fades away. There will not be a single thing we bring to the LORD that He is overwhelmed by. Not only that, but we know that when we bring our concerns or burdens to the LORD they don't take Him by surprise. God already knew what we were going through before we said a word.
So, why do we tell Him? It is not for the benefit of God to be informed by our issues. Rather we tell God so that we can seek Him in relationship to help us. It is actually more about how we think and handle problems that we must tell God, rather than God's awareness and concern for what we are facing. God wants us to tell Him for our sake.
We also know that God's compassions are new each morning. There is no limitation or expiration date. We know that when we wake up in the morning, we can be confident that whatever we face today God can handle.