Note that your memories might not be accurate, as your brain may have skightly altered them over the years, over and over. There is generally no way for yourself to know (except for some external proof).

This is not just the case for early childhood memories, but for anything - the more time passes, the less accurate. It's even possible to have completely "made-up" memories, perceived as 100% real, e.g. through suggestive questioning in therapy.

I can relate. I often feel like my earliest memories are now more like memories of memories, and I dimly recall that it wasn’t always like that.