can't keep a job

I (20f) don't know what to do anymore. I have lost 4 jobs in the past year, the most recent being today. The longest time I lasted at any of them was a month and a half, the rest have been one or two days.

I'm having a very hard time with my mental health and have been for a while. I have a difficult time with work. It makes me so so anxious. I was awake from 2am to 10pm yesterday because of how nervous I was about having to go to work. When I actually get to work though, things are fine in terms of anxiety. I just hate it. I cannot wait to leave which only makes time go by slower. So that's why I feel like I'm the problem.

However, my partner and family chalk it all up to bad luck. The first job was unlucky because the lady who interviewed me gave me the wrong hours for my first day so I accidentally left early and was told the next day just to not come back. The second job was unlucky because my dog passed away before my 2nd day. That was a customer service job, so I gave sub-par service my 2nd day and was promptly let go. The third job is a little different because I technically left, that's the one i was at the longest. I had a week long stay in the hospital which resulted in ptsd (very long story), so I felt it would be best to take some time off. That was about 3 months ago. Today, the fourth job, was unlucky because of miscommunication throughout the hiring process.

I used to have a job that I'd been at for three years. I want a job, preferably one that I enjoy but beggars can't be choosers. I wonder if I am self sabotaging just to avoid having to work. Yes these things were unlucky, but ultimately I know myself. This could very much have subconsciously been entirely my doing.

Anyway, I'm not sure where to go from here. I will start looking for new jobs, but who knows how I'll mess it up when I finally get one? I need advice on ways to make work more tolerable, or life more tolerable while having a job.