Resigned from my job with no offer in hand

So, last night I resigned from my job. I messaged my CTO that I wouldn't be able to work anymore. It was a startup with fewer than 15 employees. I joined in March after getting laid off from another company.

I was so desperate to get a job at that time, which led me to take this job. I know I shouldn't have resigned considering the job market situation, but the workplace was so toxic that it was unbearable. Late-night calls, one-day deadlines, and no weekends. So now I'm back in the job market. Let's see what happens.