I'm on disability and my adult autistic son is on ssi, would I be able to collect a tax refund as head of house hold and my son as a dependant?

I make 1,100.00 a month on disability and my son earns 700.00 a month on ssi. His food bill is at least 150.00 a week that's 600.00 a month, his hair cuts are 40.00 a month, clothes and shoes are 1,000.00 a year, sheets and bedding, pillows and replacement furniture is at least 1,000.00 a year. An adult swing set cost 400.00, his pets include a dog, 2 cats and a Ginnie pig. All their food, cages, blankets, bedding, bowls, flea collas, wormer meds,  and Vet visits cost at the least 1600,00 a year. House hold bills come to about 800.00 a month. That includes car payment and car insurance, but house insurance is seprate and costs 600.00 a year. Then there is his books, internet and phone and lap top. Internet out in the country is 60.00 a month. He always gets good birthday and Christmas gifts. I am going to stop here and as you can see, I'm almost always over budget.