How to delete 'old' landing page home page.

Hello,

I am doing SEO on a website that is using the StartPoint theme. It is meant to be a landing page theme I think- however this website also has an about us page (Handyman Campbelltown) and a services page https://www.simplehandymanservices.com.au

I made a different page the home page and now there is no home page. The thing is it is a difficult situation because it is supposed to be a landing page theme. How can I make the home page I have now the ‘official’ home page and get rid of the ‘home’ page on the website? Incredible difficult to explain it is easier if you go on my website.

Because of my set up my current home page is a duplicate of the current homepage – again hard to explain just have a look on the site.

Also am unable to use the yoast seo plugin on the old home page I want to delete (the old home page has a theme landing page template thing). The home page is not even in the pages section of the wordpress dashboard. I have to make changes to it in ‘Appearance’ —> ‘Theme Options’. So how do I go about it? Can I change it in editor somewhere?

Scott