Question on self-employed form

I made less than $5000 for Poshmark last year and did not need to claim it but with the little income our family earned it was giving us a significant amount back.  I made the form wrong and hit e-file.  I did not want to e-file the form without looking at it then when I went into state the amount was not entered.  The form was accepted by the IRS and they will not allow me to make changes now. It would have been easier if Poshmark sent a form.