Help with Drupal upgrade
Two things:

1) The instructions you posted are for a CiviCRM upgrade, not a Drupal upgrade.

2) There's nothing wrong with being a novice!  However, upgrading a live site is something you do NOT want to take on without some experience, much as you wouldn't try to fix your house's electricity without some practice.  You can easily wreck the site - upgrades are NOT something you can do via point-and-click on the website.  

If after reading this you're interested in learning the skills, I would try installing Drupal on your personal computer, following one of the many tutorials available online.  It will be challenging - expect to take at least a day if you're inexperienced!  When you're done, you'll be in a much better position to tackle your live site.