Moonwalker,
A good recommendation is not to waste your time with tutorials and other articles trying to teach you how to set up PMA.
Just read their official docs and you'll be ready to go in less time.
PMA is not a special beast: it's a normal PHP script which requires PHP support from your Web server (
https://aprelium.com/abyssws/php.html#mac) and a running instance of MySQL.
Once you have these prerequisites, download the latest stable PMA from its official Web site. Uncompress the archive inside one of your Web site document paths. Let's assume you've uncompressed it inside a subdirectory called pma which will allow you to access it using
http://mysite/pma .
Now, according to
https://docs.phpmyadmin.net/en/latest/setup.html#quick-install, you can either edit manually a configuration file or visit
http://mysite/pma/setup to access a setup wizard to configure the MySQL server access parameters (
https://docs.phpmyadmin.net/en/latest/setup.html#using-setup-script ).
That should be it.