Car issues :((((

Today my brother had a club and I waited in his car. But when he came from his club, he wasn't able to turn on his car. The battery was dead/broken. We had to wait like half an hour for our dad to pick us up and to fix the car. I was so stressed and started crying because I didn't want to stay at school and was afraid that we would have to get a new car or new parts or a tow truck which costs money and we already got money shit going on.