I don't think it's in our capacities to change THAT much processes so fundamentally radicated. It's in our nature to let go of memories and episodes and events. If there are no clinical reasons to worry about, it seems good to live lightly.
If it's so important to have something that reminds us constantly of people or things, it clearly shows struggle to hold on/let go of. Make peace with it but find time and space to reconcile with your own past times.
