I remember preschool (somewhere between age 2.5 and age 4). Only 1 memory, which is about a boy being sent to the couch for something and he was crying and pounding his hands onto the armrest.
First memory I can specifically date is 9/11, I was 4,5 then. It was the early afternoon, I'd just gotten home from school, sitting on the coffee table before the TV where the Towers were showing. My mother was on the phone with her mother (my grandmother) pacing between the TV and the table I was sitting on.

I'm 20. I don't have a lot of memories; I had ECT done (2014-2015, 51 treatments) and that pretty much wiped away most of my episodic memory.
I don't remember having a leg anymore. I only have 3 memories of my grandfather (died 2012) - 1 when I was really young, and 2 in the last months of his life. Nothing that showed him in his 'prime' asides from that first one.
Only have 1 memory of my paternal grandparents pre-2014. (They both died last month and it really sucks not to have to remember. At the funeral, some said "Remember grandpa was always saying x?" and I'm like.. no, I don't..)
Don't remember my friends. I remember their names and faces, but I don't really have any memories of them anymore. Makes conversation awkward.

So I'm probably not a good measure.