Why do I feel so old?

I know that I started to feel old by the time that I was 16 but I'd been through a lot by that time, I'd had four surgeries, been molested once and d once, I'd lost 2 brother's to death and I'd been diagnosed with depression, I'd dealt with more than most people. That's why I felt old, I'd already experienced a lot more than a lot of people. I think that you're experiencing the same type of experince. Your life experiences make you older mentally than most young people your age.