A friend of mine tried to help me, and she has done things like this before and never had a problem with it.
I’ve done my own index.php file for the blog, and my own header.php to make it fit my page, but it doesn’t work. In my main index file I have only this code:
<?php
header (“Location: https://the/blog/location”);
?>
(and I have changed the text so it is to my blog location)