Liver cancer in my Dad.

Hi everyone, my dad was diagnosed two years ago with liver cancer. He received S.I.R.T treatment and has being doing ok.  Today he came in shivering so I put him to bed and gave him diazepam, I think it was panic attack. The thing is, and I sound so selfish but I suffer from mental health problems and I'm finding this very difficult to cope with. My mother is worn out and I'm afraid I'll not be strong enough to cope. I vomited when my dad was diagnosed, so I'm trying not to make this about me.  Say a wee prayer I get the strength and my family too. Thanks Heart