Bowel cancer, liver and lung mets. Awaiting ops. Help!!!

I am a 64 year old female, and have had two bowel ops in the past eight weeks. The first one leaked and so had an emergency operation leaving me with a large zip scar and illiostomy bag. I am now awaiting a liver resection at the Royal Free, and when I went last week to be given a date, I was told they had found nodules on my lungs - seven on one and one on the other. Of course not all of these may be cancerous but some are sure to be, and I will need a further two ops, one on each lung. I am now terrified, and beginning to think I am losing control of this. I am just about to become a Granny, as both my children are expecting babies, and I am heartbroken, as I have waited so long for this joy. Please can you help me get this back into prospective, as up until my hospital visit, I was really positive. I now feel that I am consumed with stress, and not able to sleep, so I have got to somehow turn his around. Has anyone had a liver resection, and have you any tips to get me through it? Many thanks.