“Casting all your care upon Him; for He cares for you” 1 Peter 5:7. “For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places” Ephesians 6:12.
We can never figure out flesh and we should never fight people in the flesh, but give all those cares to the Lord. Managing our emotions is a process of building the character of Christ in us. When we learn to take our thoughts captive and manage our emotions that come from those thoughts, God can build His character in us. His character can be described as calm, tranquil, tender and these are things we can ask Him to build in us.