One More
The rep you don't want is the one that counts.
Not the first one. Not the easy ones in the middle. The one at the end, the one your body is already done with, the one your mind has a dozen good reasons to skip. That is the rep that builds you. The rest was just warm-up.
You have to keep coming back to it. Every session. Every mile. Every time the voice says that's enough for today.
It is not enough. Do one more.
Watch how your mind works to get you out of it. It gets quiet and reasonable. It offers you the excuse dressed as wisdom — save something for tomorrow, you have done plenty, no one would blame you. Shut the noise down and do the rep anyway.
Squeeze the last bit out of the tank. Leave nothing in it. Leave no reason, no excuse, no "I could have done more" waiting for you on the drive home.
There are no shortcuts. There is no version of this where you get the result without the rep you did not want.
And you do not get days off. You never have. So do not start taking them now.
Go chase down that one more.
It is the one that counts.
"I don't count my sit-ups. I only start counting when it starts hurting, because those are the only ones that count." — Muhammad Ali