... but my memory seems to be better than most. It's the emotionally impactful events that are easier to recall, of course.
Two of my siblings have annoyingly bad memories. My evangelical sister is one of them, but she also LIES to herself and others if something isn't super-positive.
I mentioned a disgusting behavior of our (long-deceased) grandmother to that sister a few years ago, caused by her failing mind. So I felt bad that our grandmother's mind had become that debilitated, but that didn't change the repulsive nature of it. (Which I won't mention here.)
My sister was temporarily living with our grandmother at that time, but she kept insisting that she couldn't remember it. That particular example of bad memory from her was too much for me, and I started shouting that maybe something was seriously wrong with her long-term memory if she couldn't even remember that! Finally, after my repeated badgering, she admitted that she recalled it. She then screamed at me, "I don't like to keep unpleasant thoughts in my mind, okay?! So drop it! I don't want to hear it mentioned ever again! Ever!!!!"
Then I replied, "Fine! I'm relieved that you indeed remembered it, at least!"
And obviously those quotes aren't verbatim at all, but the semantics of our "conversation" are accurate.
I honestly suspect that my sister actively erases and modifies her memories to fit her "model" of the world. She certainly doesn't have an honest observational view of the world, like a scientific approach.