Frightened - I was diagnosed with terminal oesophageal cancer 2 months ago and I'm finding it difficult to cope with it all

I was diagnosed with oesophageal cancer 2 months ago and am now with the palliative care nurses, I am just coming up to my 86th birthday and my cancer is terminal, I had breast cancer at 52 which I sailed through with a lumpectomy and radiotherapy, I am very afraid of what is ahead of me pain wise etc and my anxiety is high and am finding it so difficult to cope with it all.