Hello @irene112,
If you want to duplicate the blogs page you would require custom coding and a child theme, because it cannot be done from the theme itself as the blogs page is a dynamically generated page.
However, you could delete that text with some CSS by using the display:none; instruction in the Customizer > Additional CSS tab.
I would provide the exact code to be pasted there myself but since I cannot see the element on the page, unfortunately, I cannot. You can follow this link to learn how to use the Chrome Developer tools to get the code that you need. After you manage to target the exact classes applied to that text, you can just copy paste the code into the Additional CSS tab and the text should be gone on your website!
If you encounter difficulties in doing so, you could create a staging site and re-create the issue. The send the URL to the stagin site here and we can try providing the exact code you need for your live website.
Thank you and have an amazing day!