You will always be who you are in the moment in which you live. Memories can be good; they can be used to observe, not to be relived, or to hold onto, but to be used as a map that shows what decisions made in the past have brought out the best of who you are, and what decisions have done the opposite.
It’s a guide for living which helps to steer one along the best paths, if observed, it can provide insight from experience on how to make those correct decisions at the point of choice.
Memories can also take away from being aware in the moment.
To observe with care, as to not let a memory overtake the mind and let your thoughts spin out of control. – A lesson along the path.