You may think, "Nobody knows what I'm going through, nobody feels the pain I'm experiencing." God knows, and "God is like a father to his children, tender and compassionate…"
God not only sees, He cares! He knows the causes, the reasons, the things that brought you to this point. He understands because He made you, and He sees the hurt in your heart like nobody else can.
Because God knows our frustrations and despair, we can give those feelings to God: "Give all your worries and cares to God, for He cares about what happens to you." Cast them all permanently on God, once and for all, and then, don't take them back.