Philippians 4:6-7
Do not be anxious about anything. Instead, tell your requests to God in your every prayer and petition with thanksgiving. And the peace of God that surpasses all understanding will guard your hearts and minds in Christ Jesus.

James 1:2-5
My brothers and sisters, consider it nothing but joy when you fall into all sorts of trials, because you know that the testing of your faith produces endurance. And let endurance have its perfect effect, so that you will be perfect and complete, not deficient in anything. But if anyone is deficient in wisdom, he should ask God, who gives to all generously and without reprimand, and it will be given to him.

I Thessalonians 5:17
Pray without ceasing.

James 5:16
Therefore confess your sins to each other so that you may be healed. The prayer of a righteous man is powerful and effective.