How to cope with work?

Simply the title. My first job, I was able to just get right into it, not much stress or ill thoughts. Yet, it got worse the longer I was there, leading to me ruining things when I finally got the advancement I wanted.

Onto my second and current job, I haven't even fully started. I'm already in a very ill mindset. Same type of industry. It's really not stress, I guess, just burnout? Yet, I haven't really started; this didn't occur until five months at my old job. I even had a 2 month break from working.

I know work sucks, but I need this job. My market sucks. How do I keep going? I'm really going to lose my mind quickly, I fear. I feel as if I'm not normal.