To change your email:

1. Sign in to your TurboTax Online account.
2. Select Intuit Account in the lower left corner.
3. Click Edit at the right of the Email address line.
4. Enter your new email address and confirm it.
5. Enter your password.
6. Click Save and you’re done.

Please see this link for more details:  How do I change my Turbo Tax Email Account?

Im trying to change my email cause someone hacked the other account so I created this new one

Please see @KarenM90's post above. If you feel someone gained access to your previous account, please report it.

Click the link below then click Report an Issue. 

Online Security Center