Hello if you are having difficulty logging into your Gmail account, I recommend that you have a look in this article on how to recover a gmail account. It contains information on a range of possible scenarios.
Alternatively you can try using this form from the Google Help Centre.
sir go on google type gmail and click first link.
now you are on gmail page you can make new account and you can access your old account and if you forgot your password, then click on forgot password and follow further instructions.
You can log in with the alternative account which connects it as a backup mail id. go to the login panel type your id and then click forgot password from there you received that panel where you can choose alternative id as confirmation.