Yeah, shitty subject. I know. Just want to release a minute. My mom died last night at midnight. She was 82. Natural causes. My old man passed 8 years ago at 81 with brain cancer. I spent all my free time with each one for the last couple months of their lives. It was rough. But I had to stay strong for each of them as they faded away. One thing I learned was, when old folks are slowly dying, they revert back to being children. They look to you for comfort. They look to you for safety and salvation. They look to you for hope. It's hard. I had to keep my emotions in check as they reached out to me for help. I never want to watch another person die ever again. One day I'll let loose and let the tears fly. Not now though. I'm the Patriarch now. Gotta keep the clan together. Sorry, just needed to get that out.
Sorry to hear this and it will be a tough road ahead dealing with a multitude of emotions. I am sure you want to be alone to process everything, but make sure you don't close yourself off from others. It helps to let friends and family distract you during this. Also, it might be hard, but share your stories of your mom and dad with others. It helps with closure and also keeps their memory alive.
Very sorry for your loss, man. And feel free to vent here 24/7 if it's a choice between that and talking to a bottle, or some shit.