Get your taxes done using TurboTax

Hi! I need to change my 2017 return (not yet filed). I purchased the 2017 Desktop software on line but cannot figure out how to get back into it to make changes. It says "Amend" and there are no tax years showing there for me to amend- obviously because I didn't file yet. Do you have any suggestions to access my tax file via this software? Maybe I purchased the wrong program...It says "Turbo Tax Amend"...sigh!