Hey bud, just seeing this now. Sorry to hear about your grandpa. If it helps any, he is in a better place now.
I understand your pain, as I went through the exact same with mine, I also lost mine because of lung cancer. Those were some bad times for me for various reasons, and I'm forever thankful that
@Gandalf consoled me through the pain, which is really why I'm still around for Argonath. I know it's been a few months, but if you ever need someone to talk with, feel free to PM me here, iG, on discord, or wherever. Be well. <3