Ingrid Bergman said that, and it is so true.

of course, bring up moments that are past, whereas
happiness is always found in the moment that is here,
Constantly remembering bad things, or sad things, can
rob you of your present — that is, your pre-sent — joy.
Happiness has been sent to you in advance by God. It
is here, in this moment, if you will seize it…and share it.

Neale Donald Walsch