Hi there!
You could set up a custom menu in order to add only the items you wish to your menu.
To do this, navigate to Appearance > Menus in your site’s admin area.
From here, select from the different items on the left and add them to your menu on the right. You can also click the arrow next to existing items on the right in order to see the options of editing or removing them.
When you’re happy with how your custom menu looks, check the box next to Primary Navigation and then save the menu.
We also have some further step-by-step guidance, including screenshots, for creating a custom menu here:
https://codex.www.ads-software.com/WordPress_Menu_User_Guide
Let me know if that helps! If not, please provide a link to your site and I’ll be happy to take a closer look.