Doctor, tell me, how do you cure emptiness?

The faint sound of bare feet on tiled floor,
perfectly in tune with the metronome in my chest.
You can skip all you want, but it just stays the same.
For things once true are never more,
acceptance, I'm afraid, is best.
And as for those regrets? They're futile, my love.
Here one moment, and slipping away every one after.
You can't change your fate, the way you can your hair.
No matter how much color you put into the universe,
so much less is returned.
"Unfair is all you are!" She cries into the abyss.
Tragic that no one is listening anymore.
Eventually, we all become like a child's toys.
Once cherished, now nothing more.