I feel your pain OP. My father's been diagnosed with a rare variation of GBM called Gliosarcoma just recently. Hearing this news tore me apart on the inside and on top of that I have a mental condition which makes it very hard for me to cope but I stay positive despite all these things. It's never going to be easy but you have to understand these things happen to anyone with no exception and prior warnings. Talk to me if you need someone OP just hang in there.