[deepbreath]

> (Hint: go ahead and start interviewing and have semi-serious job leads before this talk)

I think this bit of advice is at odds with OP's statement: "I don’t think I’d come across very well (or as sharp as I usually) in interviews at the moment without a break."

I was quite burned out at my previous job, as well, and decided (against most people's advice) to quit without an offer. I had similar "I'd rather give it a shot at being a bartender than write more code" thoughts. I was unemployed for a few months, but ultimately ended up with a few good offers. Leaving without a backup was definitely the right choice in my case.

[saiya-jin]

Yeah, i don't think its good idea to move during burnout straight to another job, with high expectations for seemingly senior position, tons of stuff to learn, integrate with new teams/culture/etc.

Just stating a looming burnout and serious will to rather NOT work at all than continue working at that company under current situation should let them realize how grave the situation is. Don't leave them room for interpreting this as 'he just needs a pat on his back and some sweet talk and he is back on track'. Polite and honest, but firm stance.

People are so freaking afraid to be on their own without job for few months. Unless OP's finances are very tight, it sounds like this kind of break is exactly what he needs. Too much at stake, and after proper breakdown, there might not be a way back.

[mcv]

When the job is actively hurting you, that may well be the best thing to do. A middle road might be to take some vacation. (Though assuming this is even an option might be very European of me.) Or call in sick. (But again, European.)