She's absolutely losing her mind. This is why solitary confinement is slowly being seen as a form of torture in American prisons. You take a person, keep them in a cell (or a gross, dirty apartment), give them no contact with human beings outside of the wardens who bring them food and take them to shower twice a week, no exercise, no conversation, no external social and cultural norms to enforce behaviors, and you end up with a person who behaves not unlike Chantal. Burping openly, farting openly, flight of thoughts, unstable identity, compulsive behavior, complete inability to interact with sane people, cramming food in their mouths with no regards to basic hygiene, strange laughing, weird tics.
Quitting her job/deliberately getting fired was the worst decision she ever made. Most people need the accomplishment of getting small but consistent things done daily because it orders our brains, gives us a belief that we have competence in some areas of life, and a week worth of small accomplishments - showering daily, doing our job, finishing chores - make our spare time more meaningful. When you have no reason to shape your day, it is a remarkable person who has the capacity to function with no external forces. There are some artistic geniuses out there who can carom and careen through life without any sort of schedule and be successful. Chantal is not one of those people.
We've watched her come slowly unspooled, flailing around, no idea who she is and what she really wants to do. She's an enormous child who has been permitted to eat sugar 24/7, stay up all night, and sleep when she wants and she's showing all the crankiness, inability to self-soothe or experience happiness, tantruming due to a lack of internal organization. She's literally a prisoner in solitary crossed with a sleep-deprived toddler full of candy. The next step down is complete dehumanization, with her throwing her shit around like a monkey and given the scatological bent her videos have been taking, I don't think we are too far out from Chantal Marie, Poopy Booty.