Where can I find what date I picked for my account to be debited?

Once your return is accepted, you can't change any of the payments details, but, you can cancel the electronic withdrawal payment and use another payment method.

You can call IRS e-file Payment Services anytime at 1-888-353-4537, 7 to 10 days after your return was accepted to cancel your payment. 

You must cancel your payment 2 business days prior to the scheduled payment date.

Check out "Cancellations, Errors and Questions" from IRS link below "Pay Taxes by Electronic Funds Withdrawal"

https://www.irs.gov/uac/pay-taxes-by-electronic-funds-withdrawal#errors 

State laws vary, contact your state Department of Revenue: https://ttlc.intuit.com/replies/3302452

To check the IRS or state payment date selected in TurboTax:

1.     Sign In to TurboTax

2.     Select "Taxes"

3.     Click "My Tax Timeline"

4.     Choose "Some things You can Do"

5.     Select "Download all forms and worksheets"

6.     Review Part V of the Federal Information Worksheet for payment and banking information.

7.     Review State Information Worksheet for payment and banking information.