A 2024 tax return with your name and Social Security number has already been filed and accepted by the IRS. To add another W-2 to your filed 2024 tax return you will have to amend the tax return.
Before starting to amend the tax return, wait for the tax refund to be received or the taxes due to be paid and processed by the IRS.
See this TurboTax support FAQ for amending a current year tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-federal-tax-return-curr...
