You obviously dont yet understand MySQL Server.
It is a database manager that can manager multiple actual databases ( its not like access ) so you only need one MySQL server on your system.
You can run more than one but you need to know what you are doing, and it will use twice the memory that you probably dont have that much of.Now you say you have mysql Workbench installed. That will be why you have two instances of MySQL Server. There are 2 versions of MySQL Workbench, one that is just the workbanch and one that is the workbench and an instance of MySQL Server as well.
So this is what I suggest you do:
1. Backup(export) any databases that you have created in MySQL Workbench, make sure that these backup files are stored somewhere safe.
2. Uninstall MySQL Workbench and the MYSQL Server that came with it.
3. Install MySQL workbench ( the version without the MySQL Server instance )
4. Start WAMPServer, make sure the icon goes Green.
... The username should now be 'root' and the password shoudl now be blank i.e. no password.
... Test this using phpMyAdmin
5. Restore you database backups, using phpmyadmin or mysql workbench.
You should now be running the mysql that came with WAMPServer.
phpMyAdmin should work
MySQL Workbench should also be able to see and connect to the WAMPServer version of MySQL Database server.
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(Windows 10 Pro 64bit) (Wampserver 3.3.4 64bit) Aestan Tray Menu 3.2.5.4
<Apache versions MULTIPE> <PHP versions MULTIPLE> <MySQL Versions MULTIPLE>
<MariaDB versions MULTIPLE> <phpMyAdmin versions MULTIPLE> <MySQL Workbench 8.0.23>Read The Manuals Apache --
MySQL --
PHP --
phpMyAdminGet your Apache/MySQL/mariaDB/PHP ADDONs here from the
WAMPServer alternate Repo-X-X-X-
Backup your databases regularly Here is How dont regret it later! Yes even when developing -X-X-X-