awful company - Avis employé Patient Services Coordinator LineIn

where do I begin: shift patterns that can change at the whim of the managers working for multiple sites per week or even per day, all with different system, rules and regulations minimum wage incredibly stressful, dealing with patients that scream at you constantly with absolutely no support other than "take some time for yourself but also be back on call in 5 minutes" unsupportive managers, unsupportive HR, unsupportive company in general paid on the last day of the month with no flexibility no swapping shifts with coworkers under any circumstances other than a written request to management 3-5 days before and identical shift lengths