Shera, I didn't know about all the extra problems you have in caring for your son (as if you didn't have enough to handle already.)
I certainly hope that you can find someone in one of those agencies that Spice posted. Just a word of advice....keep trying. Call places that may not seem to be "exactly" what you're looking for. Sometimes, there might be a person there who is empathetic and who can pull a few strings for you with people they know.
Although my daughter is not autistic, she does have a severe anxiety disorder and has finally been able to go on disability and get help. Initially, however, I felt as if I was beating my head against a wall. I called all of the "regular" agencies that were set up to help people in this situation, and they would either not call back or put us on a waiting list.....and we would wait....and wait.
While going through the process to get her on disability, a doctor gave her several coupons to get medication that was helping her condition while we waited for things to get official. After months of calling and waiting and hoping, her coupons ran out, and the doctor would not prescribe more.
She began having severe withdrawal symptoms without the medication, and I was in a panic calling everywhere I could think of to get help. Nothing...nothing....nothing. I finally called a small hospital to ask for any sort of referrals they could give me to help her. The nurse who took my call said that her facility couldn't do anything, but that she would contact the appropriate agencies (ones I had already called, btw) and put pressure on them to help. Within a couple of hours, my daughter had an appointment with a therapist and a medical doctor, and a temporary prescription for her medication to last until she was officially evaluated.
I had been trying to get things done for over a year with no results...and one knowledgeable and empathic individual was able to cut through all the red tape for us.
Don't give up. Keep calling.....keep pressuring.....whine, scream and moan if you have to.
****HUGS****