As long as you have not filed your return, you can go back in and make any changes you need to. Sign into your return and type in Schedule C or schedule f, profit or loss from farming (must be typed exactly like that) into the search bar, and you will be taken back to the interview section for those forms.
You can also sign in and click on Federal (left menu) and scroll down and find Schedule C and Schedule F and edit them both from there.
