Ok ... first the W-2 ... if you worked in Dec 2018 and were paid for that work in Jan 2019 you should have gotten a W-2 for the 2019 income.
Next ... the amended return had to be printed, ink signed and mailed in as instructed. If you owed then a check for the balance due should have been sent with the amended return ... review the filing instruction page in the TT PDF. So if you did not send a payment did the IRS send you a bill ? If so pay it.
