If you’re like most people, your default email on Google is probably something like “jsmith@gmail.com.” But if you want to change it, there are a few simple steps. ..
You can change your default email address in the settings of your Gmail account.
To remove a default email account from Google, you need to go into your Gmail settings and click on the “Accounts and Import” tab. From there, select the “Delete your account or services” option and follow the instructions.
To change your default account on Google, go to https://myaccount.google.com/ and click the “Sign in” button at the top-right of the page. Then select “Change account” from the drop-down menu that appears if you have more than one Google account set up. You can then choose which account should be your default.
To change your primary email on the Gmail app, tap the three-line menu icon in the upper left-hand corner of the screen.Tap “Settings” from this menu.Scroll down and tap “Accounts and Import”.Tap “Add an account” from the Account section.Select “Google” from the list of email providers.Enter your username and password for your Google account.