"Accepted" does not mean "approved." Accepted just means they have your tax return and the processing has begun. TurboTax gives you an estimated date for receiving your refund based on a 21 day average from your date of acceptance, but it can take longer.
Once your federal return has been accepted by the IRS, only the IRS has any control. TurboTax does not receive any updates from the IRS.
To track your Federal refund:
To track your state refund:
On the IRS site you are also offered the use of an app called IRS2Go
If you chose to have your TurboTax fees deducted from your federal refund, that will take some extra time, while the third party bank handles the refund processing.