I have lived a health nightmare

For the past year I have lived a health nightmare. It would not be so bad if I knew what was going on. I have had psoriasis for several years now. A year ago developed arthritis in my body. I am only 36. It is painful. It is in my jaw, shoulders, neck, hips.elbows, wrists, fingers, knees, ankles and toes. It seems all at once, my psoriasis, arthritis will flare up. When it gets real bad, I will run a low-grade fever and get sores on my throat and a whitish spots. I have been told I need to see a rheumatologist and have had referrels. I don't know why, but they keep rejecting me. I have tried Parkland rheumatology and have called every rheumatologist in the dallas area. I have medicaid parkland healthfirst plan. I could see a rheum if i had cash money, and i could probably come up with the 250$ for the visit. There is no way I can pay for all the testing, though. I feel like I will never get help. I have been so discouraged, I said to myself, I will just take it and never try to get better, but then it gets really bad and i try to get help. The docs just give me pain meds, sometimes antibiotics cause of all the infections, or steroids for all the inflamation.They say go see a rheum. but i don't know how to get one.
I want my life back. I have kids. I want to go see their games without getting sick, I want to work. I want help. I guess I am venting and feeling sorry for myself today cause of my throat. Can anyone stir me in a direction for help?