Your post indicates that you are using TurboTax (TT) Deluxe Online. Just follow the interview. TT will claim the Earned Income Credit (EIC) for you, if you qualify.
If your minimal income was reported to you on a W-2 form, you may qualify for the TT free edition. See
https://ttlc.intuit.com/community/taxes/discussion/this-said-it-was-free-and-now-it-s-making-me-upgr...
For other ways to prepare your tax return, for free, see:
https://apps.irs.gov/app/freeFile/
