Need to remove a link on my main menu bar

I am sorry. I have searched this and found answers that I do not understand.

I am running the Energy theme for http://www.thedulcimerlady.com

I created a new page that I want just a few people to see, but it landed in the main menu bar at the top of every page and is very public.

I assigned the page under a Parent page and adjusted the Menu where it would show in an effort to get it to move to a sub-menu, but there is no change. I then went to the Widgets section, but WordPress changed how it looks and I don’t know what to do there. I did, however, set up Sidebar Widgets at the bottom of the page itself.

Even setting it as a Private page, it is still public! (Why is this?) I wish I could put it on a Draft setting, but that disappeared once I clicked on Publish. (And frankly, every time I’ve set up a page as a Draft, it becomes Public, too. Something is really off.)

Right now the page is in the Trash (I saved all the text to a Word doc), but it is STILL showing on the main menu, even though I went to Menus area and removed it (yes, I saved the Menu changes). An error 404 shows now, but I don’t like this; it tells people there is something on my site that they can’t see. I just want it off of there!

Do I need to delete the page from the Trash and start over? Moving the text to Word probably destroyed all the links I created.

I’ve been reading about “php” and code lines to add somewhere, but I don’t know where to do that, and don’t really understand >what< to do, or what it’s going to do. How I wish someone would walk me through this over the phone….a voice would be very helpful, and then I can write myself instructions that make sense. Very clear and concise how-to will be appreciated.