how to hide previous post and next post

You can try deleting the next / previous post from single.php

What i do, as i’m not an expert, is use notepad++, copy the entire single.php there and SAVE it on my pc. Then, look for next, previous as you can see here, and try deleting this, upload it to the site and see how it looks, until you get the result you want.

Remember to save the original file, or restore it from FTP.

Hope it works