When you were a child you rested in your parents all the time. You didn’t worry about a place to stay or food to eat. You knew your parents would take care of that.
This is the same attitude that we should have towards God our Father as an adult. Why should we worry. To worry is to expect something that is not so good to come to us or upon us. Why would God do that? He loves us so much. Trust Him. He got you.