All we can do is entrust ourselves to God and rely on his mercy. God's verdict is the one that counts. Those who exalt themselves will be humbled but those who humble themselves will be exalted. The next story is about children. Whilst they did not rate very highly in society, they were important to Jesus in showing that the simplicity of a child-like faith was a right approach to the kingdom of God.
Little children are completely dependent on parents for everything.
They must receive things from their parents. They cannot manage on their own. They also have to trust that what is given is what is required. Children accept this more readily than adults. A sober judgement is requirement of our ability to stand justified before God.