It seems if you use the wp_head hook as an action to put your custom metadata into the head tags of your page, it is dependent on where the theme you are using calls the wp_head. In my case, it is at the end of the head tags.
How can I force my meta data near the top of the head tags? I have a header.php file I'm calling in using a self-made plugin. I know how to write the function code to call the header.php. I just need to know how to hook it to the start of the head tags.