Whats the worst thing that could happen to you?

My entire family getting killed in a car crash. Which would mean no one on this earth would 愛 me または care about me. They are the only people I know so loosing them would be the worst thing to happen to me. (sorry about be a little grim on this question)

Losing another person, especially my dad. It really hurts knowing I'll have to go through losing him one day. I know he'll probably live to an old age but I still get anxiety knowing he'll die way before me. And then I'll have to live the rest of my life without him. The most important person in my life will be gone ;__;

xD