Getting Started with WordPress
The best way to get started with WordPress is to go to their WordPress.org website. Then navigate to the lessons.
(Note that WordPress.org and WordPress.com are two different websites. Google Analytics cannot be used on WordPress.com blogs. It can be used on WordPress.org blogs.)
Do you want to switch your blog to a WordPress website? The AZCentral.com website explains how to do it and keep your Google Analytics intact.