You are a strong, amazing woman who has had way too much @#%&! thrown at her too young. Of course it colors how you view the world. I remember some time back talking with my DH's grandmother. She told me that she used to always think older people were paranoid, until she realized that they had just seen more in their lives than younger people had.
Now, you have decades to go before you catch up to her, but your life experiences have you ahead of the curve. I truly understand, because I live that, too. My DH never understood why it was so important for me to get a will done early in our marriage. I have had to fight fears throughout our marriage that he will die early, as my father died so very young and so suddenly. I'm only 38, and I've lost all my grandparents, my parents, and most of my aunts and uncles.
I guess the positive spin would be that we know how important each day is, and we have learned that we have to hug our loved ones, spend time with them, and say, "I love you" each tme before we say good bye. We learn to live with our fears, even if they drag us down sometimes. We drag ourselves back up.
Lots of love to you tonight.
Kelly