To access the dashboard of your WordPress site for making changes you will go to:?
http://www.domainname.com/wp-admin or http://www.domainname.com/wp-login.php
Be sure to replace the domainname.com with your actual domain name. ?Your login URL may be different, if you're using a security plugin that has changed it.
Log in with the username and password that was supplied to you when your WordPress account was created. If you are unsure what they are click on resend password, but you will need either your username or the email associated with your account in order to reset your password.