If you have forgotten the details of Google account login that you provided during the account creation, then don’t think too much about that as you can still perform the Google account recovery process .There are many other alternative options are available for account recovery either can be phone number or date of birth which they provided during the account creation.
Login to Google account is now become a toughest task for you and can't able to do it via security question and email and looking for recovery then avail Google account recovery date of birth steps here
First of all, go to the account recovery page of Google via https://accounts.google.com/signin/recovery/ from your preferred browser.
The user has to enter the username that they want to recover.
They will ask you to choose the recovery option for your account.
Now, you need to provide the last password associated with your account and proceed further.
You can even request for the code on recovery email or phone number.
The simple option is to choose the security question. They will provide you the questions and you have to answer them correctly.
Once you have selected the recovery option, then the account will be verified and they will provide you the password reset option.
Now, you need to create a new password. Type your password twice and confirm it.
Apply the changes. Finally, log in to your account with the new password.
After following the above steps one can easily reset his account and even if you have any queries contact to Google support team for more help and information.