Get your taxes done using TurboTax

Everyone has been so much help.  I filed an extension on my 2018 taxes and I am expecting a nice return. I know that sounds unusual. Usually people owe and that is why they file the extension.  That was not my case.  I ran the error check on Turbo tax, all ok, printed and and mailed the taxes.  I would really appreciate it if someone could tell me how to check the the status of my tax return.  People file extensions all the time, so maybe I am just missing something simple.  Thanks in advance.