I filed (pd. $24.00) but I have to wait 21 days; I want to send my file by MAIL, but do not know the procedure. Thanks anyone, b5rans6tine

The 23rd of April is the last day to file; I am waiting for IP PIN but  time is flying, therefore I decided to mail my taxes by MAIL. Should I wait for the the Okay of TurboTax? I imagine that I have to have an authorization from them. Thanks, my name is b5rans6tine