Help please I'm desperate

So here's my story. I have 3 sons ages 4, 5 and 9. I am a single mom. I was struggling since my ex left me with 3 kids and my oldest having severe ADHD, but I kept my head above water. Til about march 2018. My youngest was diagnosed with ulcertive colitis. It was a challenge but I could still handle it. Til last oct he very sick and was emitted into ICU and diagnosed with meningitis/ encephalitis. We were there for quite a while. He now has a seizure disorder and needs several therapies. Shortly after he was put on new meds for his ulcertive colitis. He started becoming very weak and tired and I took him in and they checked his blood and later that day he was diagnosed with auto immune hymolitic anemia. Which the doctors said they think was a rare reaction to the meds. He was again put in ICU and after released had to get several more blood transfusions as outpatient. He sees 4 specialist right now. I lost my job during all of this. I now just got a new job at min wage. My babysitter is moving next week though. And living in such a rural area there are 2 daycares and neither have openings. That along with all his doctor apps, I dont know if I'll be able to keep my job. I have no home. Just an RV I've been staying in. I've signed up for every low income housing within 60 miles of where I live. I just need money for school clothes, gas, school supplies, some food, my car needs a transmission, so ma y things. I'm in debt to the ceiling. I just need help. I am so desperate at this point. Anything at all please. 
My paypal link is https://www.paypal.me/ashley1302
As soon as life turns around I will pay it forward.