Belief requires something concrete. If we worry about any area of our lives, that area does not operate under faith in God's promises. In counter distinction to worry, pray about it. Pray about everything. Be anxious about nothing.
Prayer is always a faith exercise.
The remedy for worry is prayer. People who worry the most pray the least. There is nothing that we face in life we cannot take to God. Prayer is the mechanic of placing our needs in God's hands. When we believe God's Word that he meets us in our need, we pray.