Having trouble with new pagina's and menu structure

Dear users,

First time install for me and I’m creating a website for a friend of mine his car company.

So the issue on hand is as following. I have made a first home page with some information on it. Then when I add more pages , the page names appear neatly at the top of the site in the menu. But the page names also appear on the main/body part of the Home page.

What am I doiong wrong here I’m, absolutely clueless.

Website and screenshots here below: https://cvbautos.nl/

https://postimg.org/image/ivswayi7d/