Trying to change my front page

I recently changed – or tried to change – the home page on my website. I want this page to come up whenever anyone types in the website name. And I want to hide the old Home page. I have therefore removed the old home page from the Menu display and re-named my new page as the Home page. However, you still get the old front page when you input the site URL. (And if you click on “Home” page on the menu, you get the new page). All very confusing. Any suggestions? Thanks
PS I don’t understand coding, so please speak to me as a beginner!