What do you think this says about me / my past?

Alright, so apparently my childhood was shitty, thing is I don’t recall it. I’m a week from graduating grade 12, the farthest back I can remember in my life is near the end of grade 8, the graduation specifically. I can see little snippets of some sort of memories before that, but the only thing I can remember clearly is a snippet that’s just a bit longer than the others is from that night. What do you think this means? How far back can you remember?

Also, do you have a past if you can’t remember it?