Private Page Issue

I want to publish a thank you page for a newsletter that I have, but I don’t want to make it public, if I do that it appears as one of my menu pages, which is no good. I tried publishing it private, it took away the page from the menu pages, but the word private appears on the headline of the page, no good.

How can I publish a thank you page without the word “Private” in it?
here’s the link:

http://www.selfdevelopmentspot.com/thankyou/

Thanks!