paniğe kapılmamak

listen to the pronunciation of paniğe kapılmamak
Türkçe - İngilizce
keep one's head
To remain calm, reasonable, level-headed, especially in a situation likely to cause distress

Officials are calling the woman a hero for keeping her head and finding the only way out amid the panic of the smoke and flames.

remain calm, not get excited
paniğe kapılmamak