In order to reset your Joomla website password, you will need to enter your domain name in your internet browser (e.g. Internet Explorer, Chrome, FireFox, Safari, etc..) with the following link after your domain name:
Now enter your email address.
Check your email as a Verification Code will be emailed to the address you entered.
Now enter your Username and the Verification Code and click Submit.
Now enter your new password in both fields and click Submit.
You should now see a "Reset password successful" message.