"The verse begins by saying don't be afraid" you have the power to overcome fears and fears if your trust is placed in God. (Isaiah 41.10)
Worrying about the future, about tomorrow, about the family, about marriage, about work, about daily food, about the whole system of this world that overwhelms, that catches and emits voices of fear, failure, illness, restlessness , this leads you to an abyss of fear. We were established in a system that formatted our belief in error, we profess that our dependence is on a human, carnal source and it is difficult for us to place all and absolute trust in God.