How did Mary warrens conflicting internal and external conflict attribute to the outcome of her going to the trial?

Mary Warren's conflicting internal struggle with guilt and fear, along with the external pressure from Abigail and the other girls, led her to accuse John Proctor in order to protect herself from being accused of witchcraft. This ultimately culminated in her becoming one of the accusers at the trial, as she chose to align herself with the powerful figures in Salem rather than uphold her integrity.