I'm really curious on those who do have these kind of usable high memory capacity. I seem to be able to remember random facts in my head but for other, more imp

I'm really curious on those who do have these kind of usable high memory capacity. I seem to be able to remember random facts in my head but for other, more important subjects (such as basic numbers about the company I'm working for, my emotions and feelings on a certain point in life, lessons and experiences that I've gone through in life) seem to pass me by and I feel like I just have these holes in my memory that I can't patch. I remember my friends sometimes ask me why I date my Instax pictures and I just realised that I cannot recall my memories easily without aids and/or concrete data (one of the reasons why it's hard for me to turn off my location history on Google). This is especially a hindrance in my personal/social life as I often forget significant life events for myself or others and come across as uncaring to others. How to improve my memory in general, basically, is my question. I've read 'Moonwalking with Einstein' that describes techniques used in memory competitions (such as recalling thousands of digits of pi) but I don't feel that is applicable in real life. Maybe someone here could chime in on that.