What are you trying to do - file your 2018 tax return now?
TurboTax does not have your W-2.
You should have your W-2's Your employer was required by law to get them to you no later then Jan 31, 2020. You are required to keep them for at least 3 years in case the IRS asks for them.
The PDF printout of your tax return contains the W-2 worksheets that contain the information that you entered, but not the actual W-2. You can download the PDF and all worksheets.
https://ttlc.intuit.com/replies/4192470
If you need a copy of your W-2 then ask your employer.
You can get a free "Wage and Income" transcript form the IRS but that is is not a copy of the W-2 and contains no state information.
https://www.irs.gov/individuals/get-transcript
You can get an exact copy of the W-2 from the Social Security Administration for $81 per copy.
https://faq.ssa.gov/en-us/Topic/article/KA-02501