You enter both the W2 and 1099Misc into the same tax return. What did you get the 1099Misc for?
Where to enter a 1099Misc,
https://ttlc.intuit.com/questions/2893392 You need to upgrade to Deluxe or higher to enter a 1099Misc.
Go into your account with Turbo Tax
Select Federal Taxes, then
Select Income and Wages, then
Self Employment > Income and Expenses - Start or Update
Or if you aren't sure enter it under Other Common Income > Form 1099-Misc
