I feel constantly sick with dread at work, even 10 years into my career, and I finally worked out why

I have no savings, I currently have 2/3 of one month's wage saved. I am entirely dependent on my income to live, for comfort, for everything I have. That fact makes me feel sick all day. It's not the job, it's not the work I have to do, it's not the people. It's the dependence.