This is me:
Age 16, tennis player, weight 128lbs. 10k off the couch run time: 41:00
Today, Age 39, weight 152lbs. 10k run, moderately trained: 52:00 plus change.
Never let yourself go. Even 2x week during your most trying years will prevent years of trying to play catchup.
It's time again for AYCE sushi.