Hi, I'm Bhavik. Welcome to JustAnswer. I'm reviewing your question now, and will reply back ASAP.
Did you follow these steps to create google account , If so In which step you got error ?
Then in this case you need to click on existing account option.Please see the step 3 of the document.
DId this work ?
Please provide your ratings to me, Let me know if you have any questions on this for me. I will be happy to help you further.
I can remotely connect to you if required to resolve this issue.