Okay, in order to delete the account you'll need to be able to access it. If you don't remember the password, then the first thing you'll need to do is attempt to recover it. To do that, please go to the following link to access Google's password ***** wizard:
Once you've gotten the password ***** you should then be able to delete your account by following the steps listed in this Gmail support article:
Just click on where it says Delete Your Gmail Address and follow the process.
If for some reason you are not able to reset your password, then the last thing you can do it use the account troubleshooter by going here:
One of these methods should work for you. If not, and you're account is not accessible, then I'm afraid that there is simply no way to manually delete your account. However, after several months of inactivity, it will be automatically removed by Google.
Do you have any other questions on this? If so, just let me know. You can reply back to me at any time.
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