Struggling with Chronic Illness and Unemployment

I'm so frustrated and hopeless. I have Endometriosis, chronic migraines, anxiety and depression. I have had 5 surgeries including a hysterectomy. I still battle pain and nausea and just feeling unwell. I keep losing jobs from this and I'm so frustrated about having an income. I need an income to survive but I feel miserable roughly 2 days a week and a 6 hour shift takes it out of me when I do work. how am I supposed to survive like this? what is the point when I am so weak and in pain and feeling so horrible. so sick of being tired and oh so tired of being sick.