Can I erase a payment method after clicking continue on the schedule your federal taxes?

I entered a payment method for my federal tax "schedule a payment" section, and clicked continue onto the state tax "schedule a payment". But have since decided to consult a tax specialist in person before paying my taxes. How can I be sure my federal taxes arent taken out of the payment method I selected, because I try to refresh and the info is still imputed, and turbotax won't let me clear and start over because I've paid for a turbotax upgrade.