> plenty of places that would be ecstatic to hire you, but the hard part is finding them
This was my experience prior to getting my RO after graduating. I think part of why the stakes feel high is just the market in general seems mostly uninterested in new grads.
I suppose I will need to find my niche in the industry. I don't care if I halve my salary. I don't care about company brand name. Amazon was more less incidental.
Before you quit, try really hard to enter a different headspace then you're in now and answer this question for yourself.
When I was doing my undergrad, I called my dad extremely distraught as I really believed I was going to get an F in a class for my major. He gave me what I thought at the time was irritating advice, but looking back on it he was right. He told me "Just fail the class if you have too, if you work in X or as a cashier at a grocery store I promise you'll have stress. You've put in a lot of time already, might as well see what happens here".
All this said, if you're literally having physical health issues, you might want to calibrate the above and put your health above everything...