Your mother is right...I was told the same thing a long time by an elderly lady. Some will never let go and will be a PITA for the rest of their lives and the only way we get rid of them is 6 feet under.
Continue moving forward...your present and future life are far better than the past one.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.