Though thoughtless and unable to stand still and think about a subject, the body of the headless witch was more then able to continue her life as before. Her newfound powers more then make up for her loss of head. Her ability to animate objects allows for her to make pumpkins come to life and work as her head substitute. She can speak, hear and everything else, thought nobody is sure if she controls said pumpkins, or if they are completely independent and she just goes along with whatever they say, but some accounts say she enjoys crushing them when they start to become too boring for them, before she inevitably makes another one. She was never into potioncrafting, and the rituals she did so often they are muscle memory at this point.
In her new form, she went from mediocre witch serving in a clan to her patron to the leader of the clan. That position was only assigned to her trough power alone, as her leading skills are not the greatest, as expected from a woman with no brain. But this is not to say that she does nothing as the headless head of the clan. Her unrestricted darkest desires became far stronger, giving her clan much greater courage and direction then somebody else. She also became talent at causing horrors beyond human comprehension to her enemies, solely because of the fact that she lacks any human comprehension to begin with. Her sisters who are now subservient to her did not notice much of a change in her behaviors, as she was never the one who would think things trough, and was very spontaneous and passion driven. Her current state only exasturbated her character. She also makes for a leader that cannot be manipulated or swayed trough magic. All psychic magic is useless against her, because you cannot control somebody's mind if they do not have any mind.
But while her evil heart enjoys being the most feared witch known in the entire kingdom, and her hips being daily filled with specific captured prisoners, her head or rather her "original self" or "main self" is currently hidden deep in hell. Being displayed on a shelf made from weird mix of bones, flesh and hardened basalt unknown to any mortal along with other sold souls. Most sold souls have their bodies destroyed and only their heads used for whatever sadistic ideas the demons think of. It is up to you to decide if she has the luxury of her body thriving outside or being cursed with the knowledge that while you are stuck here, your very own flesh bellow your neck is living life of your dreams.