Remember them, cherish them, hold them close to your heart, but keep one thing in mind.
They are in the past
For example, 22/11/1963, the day JFK died. By all means an iconic day, it changed the course of American history, but almost fifty years down the line, NO ONE CARES. You might think you do [patriotic?] but you really don't. what you do care about is getting through the next week without a relapse [alcoholic], or how much studying you have to do to pass that test.
Simply put: days come and go, its up to you to decide if you should stay with the days gone by, or move on.
I used to remember days (or dates) and i still do, its part of what is holding me back.
BUT its time to let go...
Here's to the Past.