"Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid" ~ Albert Einstein - Focus on where your strengths lie, not your weaknesses.
And that's exactly what your past is.your past. We do not bring it up, think about it or the people who are attached to it because we are each other's today and tomorrow. Why dwell on about the things and people that do not matter?