After you have logged into the admin area of WordPress, a toolbar will be presented at the top of pages. The WordPress Toolbar is an option that can be turned off in your user profile. (It is on by default.) If the Toolbar is turned on when you are logged into WordPress, you will see the toolbar immediately above your website header. Here is a picture of what it looks like:
Below, where is the Red Arrow is pointing will be the name of your website. Clicking on it will toggle between your website and the administration area of your area.
Clicking on New will present you with a drop down list of items that you can add to the website. This list will depend on the permissions that your have.
Clicking on your Name will bring up a down drop window where you can edit your profile or log out.