Need Help With Email? Ask Your Email Questions Online
Click here: https://www.google.com/accounts/recovery/?
Follow the prompts to reset your password
Unfortunately, if your answers do not match their records then cannot recover the password.
All of the answers do not have to match but a majority of them will need to match.
You will need to recover that account. Unfortunately, there isn't an option to use that same email/username and create a new password ***** it without using the recovery process.