I'm planning to take a career risk

Just want to tell some more unbiased people so I can get some unbiased opinions.

I'm planning to quit my job without having another job lined up. I've come to this conclusion after a lot of careful consideration.

I'm applying to PhD programs, and I'm 99% sure I'll get into at least one of the programs I apply to. I have a Masters degree from one of the top 5 universities in the world, and I have just secured promises of recommendation letters from three top professors. So, if I apply now, I'll likely be admitted and begin my PhD by September 2023.

I'm also applying to jobs that I can work in before then. I've sent out a couple of applications and I think I'm a pretty strong candidate. I also want to attend some in person career fairs which I can't do with my current job, of course.

I have money saved to last me for the next 2 months, and I spoke to my dad who is willing to support me for a little while longer than that before I find a new job. I don't think finding a new job should take that long for me.

I think I've covered all my bases, and so I'm ready to quit. This current job is in no way relevant for my future career or life path- so it doesn't make any sense for me to stay anymore.