This is a sample page. It's different from a blog post because it will stay in the same place and appear in your site navigation (in most themes). Most people start with an "About" page that introduces them to site visitors. It might look something like this:

Hello! I'm a mechanic who aspires to be an actor, and this is my website. I live in Montreal, have a great dog named Fido, and love rum and lemon (as well as being surprised by sudden rain during long sunset walks in the woods).

... or something like this:

123 Patente Chose was founded in 1971, and has been providing the public with quality contraption ever since. Located in Saint-Glinglin-des-Meumeu, 123 Patente Chose employs 2,000 people and makes all sorts of interesting things for the Glinglin community.

As a new WordPress user, you should consult your dashboard to delete this page and create new pages for your content. Have fun!