The budding thoughts in childhood were replaced by heartache; only after adulthood did I realize that the real heartache is not cherishing, missing, regretting because of missing, losing because of not cherishing, remembering because of loss, who knew that behind the memories, there were fragments of glass on the ground.
All I can say is that this story contains both gains and losses. What you gain will always be lost.
The best thing is to look back occasionally and cherish the scenery around you...