Go back and take out that W-2.
You can't just add it into an already filed tax return.
The original was filed...there is no immediate interactive adjustment possible.
Take it out, then come back the end of Feb and select the Amend option...after that special process is started, you can add the W-2 and anything else you "forgot" about...and print and mail ion the amended forms at the Post Office. Amended tax returns cannot be e-filed.