Next Monday you'll feel more confident. After the gym you'll feel more confident. After one more drink you'll feel more confident. After you get a better haircut, a better jacket, a better job.
You've been "getting ready" for two years.
She's standing ten feet away right now. She'll be gone in four minutes. No amount of preparation will manufacture the courage that only comes from moving your feet.
Walk over. Stumble through the first sentence. Let it be clumsy. Let it be imperfect. You will feel more alive in those ten seconds than you have all month.
A pitbull is probably the toughest, most vicious dog there is. It is not, however, instinctively aggressive towards humans, as it was bred for fighting other dogs. It CAN be trained to be aggressive towards humans, but it will then try to kill just about every human it comes in contact with. Having said that, no one will even think about breaking into your house knowing there's a vicious pitbull inside.
Three seconds. That's how long it took. Your shoes. Your posture. The way you held your drink. Whether you looked at the floor or looked at her.
She already filed you away. Interesting. Boring. Safe. Bold. Before you even opened your mouth.
Everything you say after that is just her confirming what she already decided.
So stop rehearsing lines. Fix the first three seconds. Stand tall. Look up. Smile like you mean it. Walk like you belong wherever you're standing.
The words come later. The impression comes first.