So then, my beloved, just as you have always obeyed, not as in my presence only, but now much more in my absence, work out your salvation with fear and trembling; for it is God who is at work in you, both to will and to work for His good pleasure.Philippians 2:12-13, NASB
Silent exhale. Deep inhale. Breathe through your nose. Calm yourself enough where you can hear your heartbeat.