We must replace stressful and angry thoughts with meditating on God's promises and what brings us joy. Be still in His presence and let the Holy Spirit surround you.
"The LORD will fight for you; you need only to be still.” -Exodus 14:14
There is therefore now no condemnation for those who are in Christ Jesus. For the law of the Spirit of life has set you free in Christ Jesus from the law of sin and death. For God has done what the law, weakened by the flesh, could not do. By sending his own Son in the likeness of sinful flesh and for sin, he condemned sin in the flesh, in order that the righteous requirement of the law might be fulfilled in us, who walk not according to the flesh but according to the Spirit. For those who live according to the flesh set their minds on the things of the flesh, but those who live according to the Spirit set their minds on the things of the Spirit.
Romans 8:1-39 ESV