The simple way is to go directly to the gmail account creation page (https://accounts.google.com/SignUp) and fill out the form provided by Google. If you choose this method, do not click the sign in button at the top. This will just take you to your existing account.
Another way is to use your existing account to either (1) create a new account, or (2) login to any of your other accounts. The process is not hard, but requires clicking through several screens to get to the end result.