If you e-filed your tax return you do not have to mail anything in--it was done electronically. But you asked if your tax was "paid in full." What did you do to pay your tax? Did you indicate a bank account to be debited? Did you pay on the IRS site? What about your state tax---did you pay any state tax due? How did you pay the state? Most states want you to send in a check or money order or use their own tax web site to pay. Look at the filing instructions that are part of the pdf---what does it say you did to pay your federal and state taxes?
If your efile was Accepted you don't have to mail anything in except your tax due payment. Unless you entered your bank info for the IRS to take it directly out of your bank account.
Print out your return and see if you have a tax due and need to mail a payment. It will print out a 1040V voucher if you need to pay.
But if you owe State you probably have to pay that separately.
Check the printout or PDF of your return; look for the state cover sheet with the Turbotax logo. If you owed tax, it will show the payment information and how/when you decided to pay. Read the state payment instructions carefully since most states cannot be paid from within the TT system and requires additional steps.