Over the centuries, Chinese bureaucrats perfected the dark arts of emptiness to such an extent that when they deliver speeches these days, they often recite verbatim speeches that they have previously delivered, with the sparest of adjustments.
I go through phases where I'll overuse words. S.E. Hinton, who wrote The Outsiders - she and I have been in contact for the 50th anniversary of the book - and she said, "You still owe me the 10 dollars that we bet that you couldn't stop saying the word 'gnarly.'"
The problem with words is that they easily lose their meaning. Say something often enough and it becomes a tic, not an expression of how you actually feel. Not only that, but words rarely change things. Actions do.
I say the sentences again and again in my head until they sound right.
I can't learn lines comfortably unless I have it done out loud with someone else.
I have five, six, seven things I do before those lines are in my brain. I say them like I'm a robot; I sing them. I put a pencil in my mouth, and I say them. I cook. I play with a cushion and say them - so they really are inside of me.
You affect your subconscious mind by verbal repetition.