Outside forces work on your emotions more than you realize. Joy is not circumstantial for the child of God. Supernatural peace is not based on the situations you encounter, as a child of God. Strength to rise up and battle against what's battling against you, is always available for the child of God. Learn to pay close attention to the emotions you are feeling, and realize they started with a thought. Trace your thoughts back to the culprit, and you will see what is robbing your joy, peace, and strength.....then cast it down and declare the opposite. Then teach others to do the same, so they too can be led by the Spirit, and not by their souls.
Romans 8:5-6
"Those who are dominated by the sinful nature, think about sinful things, but those who are controlled by the Holy Spirit, think about things that please the Spirit. So letting your sinful nature control your mind, leads to death. But letting the Spirit control your mind, leads to life and peace."
Philippians 4:6-7
"Don't worry about anything; instead, pray about everything. Tell God what you need, and thank Him for all He has done. Then you will experience God's peace, which exceeds anything we can understand. His peace will guard your hearts and minds as you live in Christ Jesus."
Prayer:
Holy Spirit, my thoughts shape my life. Therefore, help me guard my mind. Help me guard my heart, for out of it flow the issues of my life. Help me catch the enemy's subtle whispers, before they take root in my heart. Help me reject the wicked notions the enemy suggests and hold on to Your Word.