Edit or Remove "Older Posts"/"Newer Posts" on Blog Navigation

I am using a blog on my site to create a custom course and do not want "Older Posts" and "Newer Posts" to show up at the bottom of the page. I would like to either have only the arrows or change the wording to simply "Next" and "Previous." I know this is possible as I have seen others have success in other forums, but none of the code has worked for me. Any help with this would be greatly appreciated! 

https://www.alive.productions/otsessions

My testing

7 hours ago, Beyondspace said:

Try adding to Home > Design > Custom Css

.blog-list-pagination .newer a:after {
  content:'Next'; 
}

.blog-list-pagination .older a:before {
  content:'Previous';

}

.blog-list-pagination a span {
  display: none;
}

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That did not seem to work for me for whatever reason...I copied and pasted it exactly as it appears above and the label remain the same. What could I be missing? @Beyondspace

Can you take screenshots where you put my code?

8 minutes ago, Beyondspace said:

Can you take screenshots where you put my code?

@Beyondspace Here you can see the code pasted into Custom CSS and the wording remaining the same on the preview of the page after hitting save and refreshing.

9 minutes ago, adamdaviskyh said:

@Beyondspace Here you can see the code pasted into Custom CSS and the wording remaining the same on the preview of the page after hitting save and refreshing.

It looks like you have another code above mine, right? Can you show them?

1 minute ago, Beyondspace said:

It looks like you have another code above mine, right? Can you show them?

@Beyondspace Yes, I do. This is some custom code that allows me to have different logos appear on different pages of my site: 

Just now, adamdaviskyh said:

@Beyondspace Yes, I do. This is some custom code that allows me to have different logos appear on different pages of my site: 

They are just links for images you upload on your site. Can you try deleting them and check my code again?

4 minutes ago, Beyondspace said:

They are just links for images you upload on your site. Can you try deleting them and check my code again?

That worked! Thank you so much! I thought I had to leave those other bits of code there for some reason...I suppose that won't make any difference?