My dad was diagnosed with hepatocellular carcinoma on October 26, 2007, and he passed away on March 22, 2008. This is such a cruel disease. We were told that there was no treatment available to him since he had numerous tumors throughout the liver. The doctors told us he would probably have 6 to 9 months left, but he didn't make it quite 5 months. He had about one good month after his diagnosis where he felt fairly normal, then began going downhill fast. The timeline really varies a good bit from patient to patient.
I will pray for you and your family. I know how much strength it takes to care for someone so sick. Stay strong!