Hello everyone - just been diagnosed with kidney cancer. Fatigue is taking it's toll and I'm worried about being able to pay my bills. I have to work

Just been diagnosed with Kidney Cancer. Found by accident because I had  Epstein Barr Virus ( like Glandular Fever) and was in hospital. It's knocked me sideways after a difficult year for me.  The fatigue from the EBV and the cancer diagnosis are taking a toll on me. Although I'm getting to sleep ok, I wake around 3am  and my mind works overtime then I worry.....then I can't get to sleep . 

I had just registered as a supply teacher after leaving my stressful teaching post in August, but finding that I'm so tired I will have to refuse some days. I HAVE to work. I have no idea how I'm going to pay my bills...this adds to my worry...