Just wanted to say good job for realizing the problem was probably with this job, not with you. You may find it helpful, motivationally, to talk to friends/acquaintances and ask them what they like best about their job, so that "a job that doesn't make you miserable" feels more achievable and you feel more hopeful/driven about pursuing it.

I say this b/c a friend of mine was miserable at his job, and I realized how miserable when I told one funny story about my workplace, and he wondered if he could work there, specifically, because I didn't seem unhappy. It was clear he didn't alieve that you could be less unhappy than he was (throwing up every day) at most jobs. In that state of mind, it's hard to get excited about applying!

Also, try to do nice things for yourself, generally. Being as unhappy as you sound in your job is kind of like having walking pneumonia -- it's a big energy drain on everything else you're doing. You may find it helpful to ask "What would I do to be kind to a friend who had walking pneumonia?" and then do those things for yourself. You'll wind up in a new job eventually, but, in the interim, you may want to make sure you treat the symptoms, as well as the root problem.