Biopsy and cone treatment

I was just looking for advice. So after smear coming back hpv and low grade changes, a biopsy and colposcopy later said i had cin3
Yesterday i went for treatment where she explained about the cone treatment and then said il need to wait for results. Im so stressed as i thought i had cin3 and yesterday was the treatment to get rid-is it normal to have more biopsys done i cant function as now im not sure if it means its worst than cin3