To check your email account name and username, open your email in a browser and hover the cursor on the circular account profile picture in the upper-right corner. You'll see your account's name ...

4. Select your email address. 5. Click Google Account email. If you can't open this setting, Google won't let you change your email address. 6. Click the edit icon next to your email address. 7.

Click Add. iCloud.com will tell you if an email address is already in use and thus unavailable. If so, you’ll need to create a new name. If it’s available, it will appear in your account.