Dad has stage 4 cancer

Hi everyone, I just wanted to come on here to talk about my dad and firstly say all of you are so strong! My dad was diagnosed with stage 4 cancer, in his oesophagus, adrenal glands, liver and kidney. I’m only young and my dad and me live 400 miles away- making it hard for me to see him as much as I’d like. He was in assisted living for a week or two and now he’s in the hospital because of low potassium levels I think? And a kidney infection- the hospital got that under control but it looks like the cancer is getting worse. I face timed him the other day and just seeing the difference in how he looks broke something in me, my dad was a skinny guy anyway and he had a lot of muscle but since he got cancer he lost an unhealthy amount of weight. I really just don’t know what to do, my dad has always been there for me although he didn’t see me much when I was younger- he always helped when my family was being horrible to me. He didn’t pay much child support until a few months ago when he got a new job, he had been consistent with us and seeing us and now this is happening? It’s so unfair, he’s only 57 and there’s so much of my life that he won’t get to see. Any help is appreciated.