I don't know if this will make me sound like a huge asshole, but I find him pitiable. I should probably be avoiding the psychoanalysis, but I just get the impression that never really had any friends or a lot of affirmation for a lot of his life. And picking up a following on YouTube is his one real accomplishment, and has connected him to a lot of fweinds. So it's always more More MORE to keep chasing the dragon. And that sounds incredibly lonely, and I feel bad for him.
Nate, if you are reading this: You need to see a doctor, and I'm saying that as a doctor. The sweaty and the constant flushing are a sign that something is wrong. Will they give you a lecture about your weight and your drinking? Probably, and I know that it can be hurtful. But you're setting yourself up for a lot of problems down the road, especially with diabetes as people have said, and probably also with your liver.
Also, stop feeding Gracie so many snacks unless you're reducing her regular food intake. That's not any better for her than it is for you.