Yesterday is very much a part of who we are. We can learn so much from the experiences of all our yesterdays, but it does not do to dwell on those experiences too much. Take what is useful from them and place the rest at the back of our memories. Often too much time can be spent going over and over things that have happened and no good is achieved from it.
As Jane Seymour said: Live each day the fullest you can, not guaranteeing there’ll be a tomorrow, not dwelling endlessly on yesterday.
You cannot have a fulfilling today, or tomorrow, if you spend all your time thinking about yesterday.
Enjoy the journey!