Comment by zevon

I have been in similar situations and I've quit without having anything new. These decisions were very hard and, to some extent, haunt me to this day but they were the only way out.

While I generally agree with the advice of quitting only after having something new, I also think there are situations and contexts that can fuck you up in ways that make it very, very difficult to search for something new while you are in the shit.

There may be compromises depending on the system you live in. A long sick leave, for example (however, those processes can be similarly mentally exhausting to interviewing for a job). Other people have suggested putting in 8 hours and no more - I also think that is generally good advice (but again - depending on context, this can come with stress factors like social pressure).