There was a term I heard in my DBT group "radical acceptance"....meaning that some things in our past &/or present just are what they are or were & we have to just accept it & "let it go". We don't have to know everything......we can't know everything that has happened in our life & even if it did make a difference in us, we just need to not focus on those parts of our life that we can't possibly change.....accept it for what it was & try to make the best out of what we have & know now. We can grieve what we didn't have, but to dwell on the grief is not healthy.....to acknowledge it & then go on from there is what accepting it & letting it go so we can heal is all about.

Wishing you peace