Hello @ngadimin,
Create a new user with all privileges and login in phpmyadmin as that user (in below example the new user is newroot and the password is some_password):
mysql -uroot
mysql> CREATE USER 'newroot'@'localhost' IDENTIFIED BY 'some_password';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'newroot'@'localhost' WITH GRANT OPTION;
mysql> FLUSH PRIVILEGES;