finish school for my faimly

I am a single mother of 4 kids. 2 of them have disabilities. My goal is to finsh my last two years of high school @ penn foster online and then apply to nursing school. Not only will this help me provide better for my family. It will also give me the education to understand my childrens disabilities and limitations. I decide to do this after my son had a medication induced psychosis last august. He then spent the next 5 and 1/2 months in institutions. This may have been avoided if i had a better understanding of medications and his diagnoses.There are no grants or financial aide available for finishing high school online.  Any help is greatly appreciated. Thank You and may god bless.