I’m quite the sentimental kid so I am constantly in my head about time passing. I’ve found though that the practice of looking back (I read my old journals, for instance) and really being in awe sometimes of just how far I’ve come helps. In a similar but opposite vein, looking forward (making set goals and taking the time to imagine the person you’ll become) is great too. If you’ve forgotten memories you once assumed would stay with you forever, consider that the space in your memory/mind had to open up for something even better that’s coming along. Take the time to wonder what those better memories could be. There’s something equally terrifying and incredibly liberating about time. You wanna go back about as bad as you wanna skip ahead, that’s the game.
Coping with it looks different for everyone, though. These are just my two cents and what’s been helping me at this moment in my life.