I know its hard right now, i cant begin to imagine what it must be like to get news like that. But please hold on a little longer. Things can get better.
Cancers can be treated - look at all the medicines being invented right now. Hold on, think positive. There will always be other jobs, if you cant explain why you have had a lot of time off then really you should leave.
I know it must feel lonely to have no support around right now, but it can get better. You have to give it time and stay positive. Think about the future. I dont know what else to say right now to you but if you do want to talk your more than welcome to message me. I am here even if its just to listen and if you need soemone to talk to right now.