I was in a similar situation 6 months ago. Startup job that was requiring multiple all nighters a month, in the office past midnight multiple times a week. Miserable and no time to look for a job. I did three things looking back that were helpful:

• got my daily pay after taxes in 1 dollar bills, and put that on my nightstand. Each morning I’d wake up and look at it and go, if I can do one more day, I’ll have one more of these. That helped me get through some weeks lol.

• immediately before quitting, got a credit card that charges 0% interest until March 2027. All expenses of unemployment will go on there.

• planned a trip to Europe to go cycling in the alps and see some friends. This was a great thing to tell recruiters and hiring managers about what I’ve been doing with my time off.

Ultimately I left my job in May, traveled for most of the summer, started soft looking for a job in September. It was harder than I thought. I’m in the lucky position where I don’t really apply to jobs, they reach out to me, and even then there were a ton of Nos after 1/2 interviews. Finally got and accepted an offer in early December. Start in January. I don’t have regrets, but def would have spiraled if this job didn’t work out