I walk through the failure modes one more time, not out of panic now but out of habit and care. I've done the math, built in the margins, and I let that be enough instead of chasing every what-if into the night. There's a humility in trusting the work over my own fear, and it lets me sleep.
More people experience this than they realize.
You engineer for failure with steady humility, trusting your margins instead of your fear.
If this sounds familiar, the Library can help you find the bigger picture.