Hey i got my w-2 form for 2019 but i dont have an option anywhere to actually fill stuff out based on that and it says my tax return has already been filed? What do i do?

Just to clarify, did you already file your return, and then received another W2 that you wanted to add, or have you not filed your return at all?

I didnt file but it says i did

If your employer is a TurboTax Partner, you may have imported your W-2 prior to receiving it in the mail. You would have entered on your return, your employer's EIN and a specific amount from your last pay stub. Do you remember doing this? If you do, please see this TurboTax FAQ for more information:

https://ttlc.intuit.com/community/forms/help/will-i-be-able-to-import-my-w-2-before-i-get-it-in-the-mail/00/26418