How do I prepare a prior-year tax return?

If you need access a TurboTax Online return that you already filed, we've got instructions for that.

If you started an online return but didn't complete it before the mid-October shutdown, we can help you finish it.

Tax years 2015, 2016, and 2017

1. Select your TurboTax product for the year you'd like to file. (Unfortunately, TurboTax Online is only available for the current tax year.)
2. Select your operating system.
3. Purchase your TurboTax product.
4. Download and install your TurboTax product.
5. Complete your return in TurboTax. We'll guide you through the process.
6. When finished, print and file a paper return through the mail. (Prior-year returns cannot be e-filed.)

I need to get back into my account and print out tax return for 2018 so it can be filed

Then open up the account, click on add a state to get back in and then go to the FILE section to file.  You have to pay your TurboTax fees in order to print.

https://ttlc.intuit.com/questions/1944348-how-do-i-print-and-mail-my-return-in-turbotax-online

When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s.  Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS/state received the return.