I am having some major trouble running a game of Pathfinder: Rise of the Runelords.
As some people know this quite a hard campaign, and while it is the first one that I have ever really run, I am content with it.
But that contentment is being ruined with a group I just don't know what to do with. We have one player who is a good member overall but feels he is overworked with helping others. We have one 5th ed veteran who ends up messing around a lot, so his talents are fairly wasted, and his quite cocky and abusive nature does not suit the healer role he plays. We also have 3 new players, who want to play but end up messing around a little, except for one player whom I feel is just the eye of the storm, a decent focused player surrounded by rowdy players.
My biggest problem is the fact that they will not listen to me at all. I am reading out a list of loot, and I look up and finds a player is looking for snacks, and two others are arguing over who gets an MWK composite longbow; on the same list as a bunch of magic items I had quite forgotten it was even something they would care about. I even occasionally (I know I shouldn't) have to scream at them just to get them back to the table.
I know it sounds bad, but really, they all want to play and I want to help them, but I can't if they won't listen to me.
What should I do to get them to listen to me, or just play/focus in general?
PS: Kicking out a player is not an option.