Troubles Editing Nav Bar

I am trying to change the titles of my Nav bar and after looking up how to do it and changing what I think needs to be changed I’m still not seeing any differences.

What I want to do: Change the text showing up in the nav bar

What I am doing: I am going into appearance, then menu and editing the already existing tab for the nav bar that I want to change. I am clicking save menu. All links are set up and working properly,

What is happening? Nothing is happening, I’ve changed several things but the website isn’t updating.