Nothing reaches us except what Allah has written.
The answer to I told you so
To those who mocked the believers' hardships and praised their own caution, the Prophet ﷺ was told to say: nothing will strike us except what Allah has decreed for us. He is our protector. And upon Allah let the believers rely.
"I told you not to quit that job." "You should never have moved." When things go wrong after a sincere choice, the I-told-you-sos pile up. What reached you was written, and He is your Mawla.
If something bad happened, I must have chosen wrong.
Only what Allah wrote reaches me, and He is my protector in it.
Say this verse once today about something that went wrong: lan yusibana illa ma kataballahu lana.