The Past is the Past & it's that way for a reason, so don't regret what you left behind because if it was worth it, it would be with you now & not a distant memory.
Learn from the PAST, but don’t live in the PAST.
If you do something wrong, do not keep looking back and feeling ashamed of it its what is happening now that matters.
Our past may explain why we're suffering but we must not use it as an excuse to stay in bondage.