John 16:33 (NIV) “I have told you these things, so that in me you may have peace. In this world you will have trouble. But take heart! I have overcome the world.”
No matter what is in front of you in your life right now, anything you are facing. God shows us that we will have thought in this world, that is because, we are not in heaven. Heaven is where everything will be PERFECT. God does let us have peace in the fact that he loves us and tells us he has already overcome the world, just know that thing in your mind that is stressing you out and keeping you awake late at night, God knows about and already has the result in hand. He will deliver you on the other side. Take heart and know he is more powerful than anything we will ever face, and he is on your side!