I think my anxiety will kill me

I witnessed a 1.5 year war almost everyday i was hearing missiles and bullets , i get in an insane phase of anxiety and panic once a missile hit near us just from the sound of it , the sound of the missiles literally make me go insane but after 1.5 year we went to another country and seek refugee their i thought everything would go good but nah.

Now after three months we may go back again to my country despite the war still going, i have maybe 15 days before i go back due 2 financial things, and from now I'm thinking of the sound of the missiles and I'm getting anxious and crying although we didn't go back yet , I can't imagine going back after already left out , i don't know what to do i never thought my life would go this low, does anyone have anyway to calm down the anxiety?