How do I register for Google Mail？
Gmail is a free service offered by Google. To register, access the official page and fill it with your details. I recommend using accurate details and provide a working phone number as well. If you use another email as recovery and forget that email, the phone number can be used to recover the account.
Registration page: https://accounts.google.com/SignUp?service=mail&continue=https%3A%2F%2Fmail.google.com%2Fmail%2F<mpl=default