How can I print all data entered in Turbo Tax for 2018?

At this time you can print the pdf of the tax return and all of the schedules and forms  that would be needed to mail the return to the IRS/states.  The complete "pile" of worksheets,  etc. cannot be printed out right now while the system is in transition from 2018 to 2019 software.  It will be a month or so before you can print out everything.

PRINT RETURN   You need to print a copy of your return?  Sign in to your account using exactly the same account and user ID that you used to prepare your return.
On the bottom of the screen find Your tax returns & documents and click on Show.  Click on the Year and Click on Download/print return (PDF)