[DanBC]

Can you re-frame "failed" to "practiced" or similar?

If I picked up a violin for the first time in my life I'd have no idea how to play it and I'd make a hell of a noise. But with lessons and practice I could, eventually, produce a tune.

The same thing happens with your reboot - you're used to something; you've changed that thing; change is tricky; you sometimes slip back.

That's not failure, that's rehearsal.