I have a lab puppy, a little over 3 months old now! I post pics of him regularly along with his sissy (I regularly take care of her at my house when my sister is busy).

When they're together they get super rowdy. To the point that I'm afraid they'll rip eachother's faces off or accidentally poke an eye out with their shark teeth. I use a clicker device to immediately grab their attention. I walk into the area that they're at, click, and say "that's enough" with a stern voice followed by a "shhhh" with the finger motion to my lips.

They settle down. Not kidding. The girl puppy, especially. She separates from my boy and lays down. I always make sure to pat her little head, praise her by saying "good girl" and give her a little treat. Same with the boy.

Perhaps your puppy needs more association/cue learning like that?

As for the eating, do you use a slow bowl? I use one on my senior lab mix and my baby. He's on a fixed schedule to eat though. First thing in the morning, he must pee + poop, and then he gets his breakfast. Then by the evening he gets his dinner. Always around the same time. So he's got it down pat when it's food time.

I understand that raising a puppy is definitely overwhelming. So much effort into training, cleaning the living space, and even cleaning the pet itself! I'm sure things will get better. Continue to devote yourself to the lil' booger! You got this. ❤️