I need another category created for a word press website

My regular website developer is fully booked, so I need immediate help from someone new. I need an additional category created on my WordPress site and added correctly to the menu. I’m quite proficient with WordPress, but I need guidance to ensure it’s done right. I have attached the 2 current categories, Locations and Services, in screenshots and the space for the Scrap Metal category to go in the header menu.

This needs to be done today, and I’m offering £10 for this task. I’d like to go through it and be guided on a video call so I can learn the process for future updates and be clear on what the changes are. This should take 30 minutes to an hour, including the brief and discussion on the new pages.

If you’re skilled, there’s more work available: I also need 10 new pages created ASAP and am looking to build a long-term working relationship. Fluent English is required.