I have a whole period of my life from the age of 41 until about 51 that is basically my black hole.....can't remember much of anything that happened during that time except for a few things here & there & timeline is completely gone.

As far as remembering back into my childhood....60 years ago.....I realize that being an only child & not having anyone to share memories with....they got completely lost. I lived for the day....not to remember it but as a step to go onto a life that I wanted to live....not what I was living. I was always aiming for the future, not living in the past.....so I don't remember much about my childhood either....just a few things here & there but very few specific things.

I think the DBT mindfulness is what I found helps me think & stay in the present....trying to see the big picture of the life experience I am living NOW.....& that is usefull for the wise mind in choosing the best actions given the big picture that is my life.

I know that living in a stressful situation, I had a horrible time remembering anything specific about it.....& it has only been since I left that marriage situation 6 years ago that I have been able to pull more of the parts together.

Not sure there is any good way or any sure way of solving what you are wanting.....really not sure that what you are experiencing isn't really what is normal????