Self-forgiveness
Guilt is usually love that has nowhere sensible to go. This works through the four sentences that keep people awake.
I should have…
What's actually true
“Should have” always uses information you didn't have at the time. Hindsight rewrites the past as though the ending was visible from the start.
Now answer this
What did you actually know, and what did you actually have the energy for, on that day?