Yes, as long as you haven't hit the "transmit" button in the last step of the e-file page or actually printed and mailed your forms, then you have not filed with TurboTax. So, you are free to seek professional assistance in preparing your return this year.
You can clear your forms by going to My Account > Clear and Start Over - but, if you have gone too far in the program, you may not be able to clear anymore. If that is the case, you can just ignore your return on TurboTax. It will be cleared automatically at the end of the tax season and will never be sent.
