Ok, No one is understanding Your question. Ok i am going To tell you the solution
First login in Your cpanel add a forwarder firstname.lastname@example.org >>> Your gmail email address.
Now login To your Gmail >> (At Top) settings >> accounts>> Add another email address.
Now you will receive a mail which will be in your gmail. Just verify that . Now you can receive and send emails directly from gmail To your own branded email address. and You can Login in Your gmail account with your own branded email.
Hope it will help You. any more problem related this then PM me or write here.