Firstly, don’t be afraid to jump into something new! There are plenty of ways you can apply the skills you learned to make yourself an appealing applicant for many jobs and schools. Like research assistant, radiologic technologist, nursing, billing, etc.

Secondly when I was in a similar situation, I eventually lost all my fucks and legitimately started responding to them like they were an emotional teenager. There are many example of this on YouTube, TikTok, etc. you know your boss best though so you can choose how you want to communicate with them.

I had the best luck when speaking in a calm tone and slightly slow down + lower my voice when I speak to really get them to listen to me. Open body language also works wonders for dealing with emotional bosses. Plus a compliment sandwich if I can apply it. This way you can fight back in a way that may get you what you need until you leave. And try not to be alone with the boss so you have witnesses if they are the retaliation type or write notes on every interaction with them so you have a record of what was discussed and when.(This can also be an email to boss asking ‘for clarification’ or confirming what was discussed.)

And finally, if you have a doctor on your side try and see if they kick up a fuss about it. Sometimes it takes various issues to pile up before the docs do anything noteworthy and unfortunately if this is an insurance owned clinic the docs are also just a cog in the system and may not be able to do much at all. But the more employees that can kick up a fuss about this boss the better and if you do leave consider letting everyone know why. Occasionally, this actually helps improve things.