Yes, I have quit a couple of jobs very quickly like that. In my view, if you know that the job is going to make you miserable and/or set you up for failure, the

Yes, I have quit a couple of jobs very quickly like that. In my view, if you know that the job is going to make you miserable and/or set you up for failure, the sooner you quit the better for your mental health and for your career. Being able to cut loose early is a strength, not a weakness. You're not a failure. You've been failed by the company.