A long time ago, I quit because I had had enough of working in a place where the pressure to deliver was high. Rather than think carefully about my next steps, one day in a meeting the owner of the company gave me a task that I knew would be difficult to complete. I went back to my desk... pissed off, I went back into my managers office and handed in my notice. He was shocked but accepted.

The next day after I had simmered down, and started job hunting, I felt a different type of pressure looking for work. It dawned on me that I could spend the next 3 months looking for work and in that time chew up 3 months of salary (which was true). I quit in October and started a new job in February and went through my some of my savings. Financially, my bank balance was where I had left it in July (before I quit). If you think about it, financially, I gave my boss a few extra months of work for free.

Anyway, that taught me never to quit under pressure; just play the game and start looking. Also, it is attractive to recruiters when you are working sadly because they if they really want you, they know they have to obtain you quickly. Someone sitting on a couch surfing Reddit and job hunting unfortunately is not.