feeling super sad and crying all the time

Thank you both for your comments. I organised to talk to a councellor today and hope it helps. I hate feeling so low and sad and I am sure everyone goes through these feelings of being scared and helpless. I feel my family are sick of cancer already and I don't want to burden them with my feelings as the cancer word has been constant in my household since I was diagnosed. But that is the problem I think no one really understands your fear and feelings unless you have had that diagnosis.  I have never cried all the time in my life but constantly cry now and just want to feel happy again does that happen eventually please tell me it does. I know I should not have this feeling of anger when I hear people complain of silly things  in life, I almost feel like saying Do you have cancer well No so stop complaining of nothing than can be fixed easily.  Also the fear of if it will come back or if it is somewhere lurking and I dont know is overwhelming. I have always been a strong person but not anymore, now I feel like a sook and weak.