Phil. 4:6 In nothing be anxious, but in everything, by prayer and petition with thanksgiving, let your requests be made known to God.
It would be wonderful if we would commit the things we encounter into God's hand item by item. Otherwise, when the first thing comes up, we lay it upon ourselves. Then when the second and third things come up, we also lay them upon ourselves. In this way, we are pressed and lose our joy.
Imagine, if you will, three roofers moving roofing shingles to the roof of a house. They stood on a ladder, one at the top, the second in the middle, and the third at the bottom. The one at the bottom would hand the shingles over to the one in the middle. After the one in the middle received the shingles, he would hand them to the one at the top. They continued this way unceasingly.
Think about this "What if the man in the middle did not pass on the shingles he received, or what if the man on the top refused to take the shingles passed to him?" If that happened, the one in the middle would eventually be crushed to death by the shingles that were continuously coming to him. We deal with anxiety in this manner. If we do not send all the anxieties to God to let Him bear them, all the anxieties of this world will crush us to death.
The moment we have anxiety, we must immediately entrust it to the Lord. We do not have to tolerantly accumulate anxieties upon ourselves item by item. There is a way out. We can rejoice and be free from anxiety because we have God and because we can entrust all things to God through prayers.