Biggest Fear?

I've lived a lot of life in a short time--I've crammed it betwen the homeless nights, dead end jobs, lost dreams and hard work that never really paid out and I've had a lot of fears for sure but most of them have come true; my biggest fear? Sure that happened about 13 years ago. Can you really list a fear as your biggest fear if it's already happened or if it's already come true? My biggest fear is that my biggest fears will be repeated or come true again.