Recite the verse bellow excessively. Your fears will disappear Insha-Allah and any possible calamity will be averted with Allah’s Help.
فَاللَّهُ خَيْرٌ حَافِظًا ۖ وَهُوَ أَرْحَمُ الرَّاحِمِينَ – 12:64
“… But Allah is the best guardian, and He is the most merciful of the merciful.”
You can read this dua, Insha Allah. Also:
Jazakallah Khairan Katheeran