Sorry, but not enough info. Please ask a full question so someone will know what you are wanting to know about a 2018 return.
Can you not find your 2018 return that was prepared in Online TurboTax?
Or do you want to know how to prepare a 2018 return now that you didn't file last year?
Or are you asking about a 2018 tax refund you didn't receive?
Or what?