dnd 5e – Becoming a ghoul would be a viable option to prevent a demon from making your soul die?

My character promised a demon his soul after his death. She was young and stupid, do not judge her. I spoke with my general manager and we came to the conclusion that Resurrection, true resurrection Y Near death he would not work on it, since his soul would be willing, but not free.

My character has a very specific goal in life and a premature death would be very inconvenient. Therefore, he was looking for ways to cheat death and simply stay on the Material Plane as long as necessary, with or without his soul intact.

First, my character investigated lichdom, but she is not smart enough for such an effort and besides that, becoming a lich is quite difficult. Next, he studied vampires. But to become a vampire, you must be killed by a vampire and then ascend as a vampire beget. That would suck, since the vampire spawn is in debt to the vampire. Finally, my character investigated the ghouls and discovered all the cannibalism and other unpleasant things.

But since that seemed to be the only viable option (at least for her), my character started eating dead people a while ago. In general, she cooks them and adds spices and vegetables, because the raw meat is disgusting. (Hurray for the skill in the kitchen utensils!).

Now I have a couple of questions. As all these consultations are closely related, I will ask them here, instead of dividing them into several questions. If the good people of rpg.stackexchange do not want that course of action, let me know and I will separate them.

Is eating people a viable method to ensure promotion as a ghoul at the time of death? And said ghoul would keep his soul? If not, will the conscience of the individual live as a ghoul, even without a soul?