Philippians 4
"Rejoice in the Lord always. I will say it again: Rejoice! Let your gentleness be evident to all. The Lord is near. Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus."
No matter what, find joy in the Lord. Focusing on the Lord's purpose and blessings will provide you with the strength to keep your thoughts away from the enemy. When you prayer, recite a prayer for yourself and include those who are challenging your inner being. The power of prayer will help to guard your heart and the negative mindset that can cause you pain.