I think the question is (a) stay at low paying "public service" job solely to get loan forgiveness or (b) move to higher paying job and forget about PSLF. Not sure what the higher paying job is but I assume you have something in mind.
I'm guessing you're not pursuing residency, maybe because you're sick of medicine, maybe you're not at all excited about staying in the academic arena. In your shoes I'd dive into whatever career you *are* pursuing, dump PSLF, rely on PAYE or REPAYE, get on with your life. Doing a PhD or law school or whatever is still possible but I'd recommend ensuring that there's *something* you're willing to do for a living before you retrain.
If by any chance you can at least do an intern year to get licensed, that gets you in the game for flexible, high paying work at a doc-in-the-box. If you can't stomach the idea of more board exams etc, maybe put it aside for a year, but you're so close to this possibility. And think about pathology or radiology, because these have stable "day job" potential to support outside interests.
Understand that *most* people hate their job. Consider yourself lucky if you find a job/career that you consider satisfying more than half of the time.
Best of luck to you.