If you already have a Google Account, you can use it to log in to Gmail.
Use your browser’s location bar to go to gmail.com.
Enter your Username OR Phone number used while signing up for the Google account, then click Next.
Enter your Password, then click Next.
You have now been logged in to your Google Account and taken to your Gmail inbox.
To Sign out, click on the initial of your username, then click Sign out.
This is the end of the tutorial. You now know how to log in to Gmail using your Google Account.