Cancer survivor stories and experiences

My dad was diagnosed with cancer almost five years ago. He was a heavy smoker, and unfortunately, he paid the price for it. Now, he’s had his entire right lung removed, and honestly, he hasn't been the same since. I see how much fear he's carrying, and I desperately want to be there for him, but he’s just completely shut me out lately...
I was wondering if anyone here has gone through something similar? How can I support him? I should probably mention that he's never really been the type of person who's easy to talk to...

Try to be there for him without being pushy. If he does decide to open up, don't jump in with unsolicited advice—just let him talk and listen. Honestly, I doubt my old man would say much to me about stuff like this; he’d probably just try to spare me the trouble. I know I wouldn't want to burden my kids with my problems. But if he wants to talk, just let him vent and stay close.

Patients are difficult people... and even more so when they're actually sick. Those ones? They’re next-level exhausting..
I know my own deal.. my personality has probably shifted 100%.. or maybe it hasn't! Maybe I was just an asshole and a handful from the start..
What do I actually need? Company. I crave social interaction, but I want the kind where people don't try to get inside your head or act all sympathetic toward you—as if it’s some grand tragedy, when really it's just life, like glancing at a neighbor grabbing a beer at a local pub... and stuff like that. I want people who won't lecture me or give me unsolicited advice, which... ugh... finding someone like that is nearly impossible because everyone is such a pathetic listener..
A lot of people lose their cool and stop wanting to hang out once they start dealing with truly sick patients..
You have to actually know how to listen to someone. If that isn't in your DNA, then stay far away from a guy like me, because you'll only end up feeling even more depressed about it.