Can I change my username and email?

If you need to change your old password but don't remember it, sign out, and go to account recovery.

To change your User ID or Password, you'll want to be logged into your TurboTax online account.

1. Go to your Intuit Account and sign in to your account.
2. Select Intuit Account in the lower-left corner of the screen.
3. Look under Sign In & Security and select Edit next to either User ID or Password
4. Enter the new information.
5. Enter your existing password.
6. Click Save.

While here, you can also update other account information, add a phone number for increased security, or turn on two-step authentication.

This does not work, I do not get the option to change user name or email.

To change your username on your TurboTax account, please see the information here for assistance. If you need to change your email address associated with your account, you can do so by following the instructions here.

Username is grayed out in the menu so It can't be changed at least that I can see

Please see this help article for assistance with updating your username. 

How to update your username or password. 

Change email address

Please see the TurboTax FAQ here for assistance in changing your email.

@Dgano