Helplessness, anger, feelings of being out of control are common following emergencies. Depression can also follow, exhaustion and can compound the situation. Stressed minds only come to stressed conclusions. Get into nature, see friends and speak to them about your problems, seek professional advice and take it. Buold you own immunity to stress during quiet times, prepare for the worst but hope for the best. You can cope better, regardless of your experiences and difficulties.
For more information, a resources link here: https://depts.washington.edu/hcsats/PDF/TF-%20CBT/pages/cognitive_coping.html