https://dev.to/tanmaygi/how-to-install-lamplinux-apache-mysql-php-on-ubuntu-2004-5fl1
https://dev.to/xeroxism/how-to-install-phpmyadmin-on-linux-ubuntu-4mdn
https://tableplus.com/blog/2018/11/what-is-the-default-username-password-in-mysql.html
Completly uninstall mysql:
sudo -i
service mysql stop
killall -KILL mysql mysqld_safe mysqld
apt-get --yes purge mysql*
apt-get --yes autoremove --purge
apt-get autoclean
deluser --remove-home mysql
delgroup mysql
rm -rf /etc/apparmor.d/abstractions/mysql /etc/apparmor.d/cache/usr.sbin.mysqld /etc/mysql /var/lib/mysql /var/log/mysql* /var/log/upstart/mysql.log* /var/run/mysqld ~/.mysql_history
updatedbUninstall phpMyAdmin
sudo apt remove phpmyadmin