I really appreciated these words from Pastor Michael Newman:
Jesus also bid His disciples to pray. The power of prayer is not as much in your speaking as it is in God's listening. Implicit in prayer is the promise that God hears you and responds. When you are overcome by anxiety, you can cast your cares upon your Lord and Savior, being confident that He will carry the burden and lighten the load.
From "Hope When Your Heart Breaks," page 192