I also agree with the advice here. My daughter seems to have a similar situation brought on, I believe, by severe emotional trauma. I am always shocked to hear my daughter tell me, when I reminisce about her childhood, that she has no recollection of the events I talk about. We both were in shock when her father left our sweet little, loving family when she was 13. Only recently is she able to talk about the effects of being a "girl interrupted".
My daughter is finally going to a counselor after all these years, and I notice that NOW when I talk about an incident from her childhood, she is more apt to say, "Oh, I think I remember that a little," rather than her usual abrupt, "I can't remember that." She has, up to this point, been very uncomfortable when I bring out pictures of the past, and I still only do that by subtly hanging a few of only her on the wall. I am saving everything that included our little family of 3 because I think the day will come when she will be able to look at them with joy. I know, I've reached the point (after many, many years) of being able to be extremely grateful that I even had the chance to experience that joy at all. So now I smile when I think of the times we had together and the pictures I see rather than feel the pain of the loss of that. Of course, it's always there, a bit, but I'm grateful I can feel such joy in having had a chance that many people aren't given.
As a general view about memory, I've noticed that many of us aren't sure whether a childhood memory is actually our own OR if we remember the situation because it's been told over and over again - like a piece of oral history. Many of our memories of the past are actually enhanced by our parents repeating them through the years so that what we perceive as OUR memory is actually a description that has been told to us over and over.
One last thought: Someone once told me that we have two chances in life to have a happy family. Once when we're a child and then, in our adult life, when we create our own family. If the source of your memory loss is from something traumatic, may you now create the most wonderful memories that far out weigh any memory you've lost. That's the best thing we can do with loss, make it into something extraordinary. Sweet wishes to you.