The only reps you don't grow from are the ones you don't do.
Some people get up in the morning, don't go to the gym, they go take a shower. Well, I go to the gym, and I get a shower too.
When every action has a purpose, every action has a result
If you mentally believe it will happen, your body is going to find a way to make it physically happen.
Your comfort zone is your danger zone
The hardest things in life are done the least but provide the most.