Day 1 Rough Start

Yesterday after spending a couple of hours cleaning my son's room of everything from food and dirty dishes, etc.,  I was bound there will not be anymore food taken into his room. Normally, he is good about putting trash where it belongs and picking up things but not in his room.  I had let both of the kids eat in their rooms figuring their rooms are their rooms. However; it was not a good idea as I am the one who cleans them. And they need to get different habits for when I leave this world.. The last time I started this, I relented into letting them have just popcorn in their rooms and it led to other stuff.
Plus last night, was the night to start them eating at regular times. When I went to bed, there was a lock on the fridge and everything was put up except some fruit.
I fixed chicken with veggies and made a huge salad for dinner. Braxton wanted another piece of chicken and I told him he needed to eat his salad first. It took him a bit and caved in and ate it. By the time he got to his second piece of chicken, he was irritated and made a super mess getting it to which I insisted he clean it up and he did.
Later on, he must have had 2 packages of Top Ramen hidden and he got them out and headed for his room. He does not like it cooked. I reminded him to 'eat at table' and took the other package away.  This is where the battle started.  With the unopened package in his hand, he began to bang it on things on the table and kept hitting my glass cake plate and cup and then while still staring at me, would start pushing things with it.
I asked him if he wanted the Ramen and he replied 'yes' to which I told him I would take it away if he kept it up.  Well, the little stinker took the package and put it on the floor and began breaking up the noodles. I figured he must want them cooked. I asked him and he replied "No."  Then he picked up the package and proceeded to dump it out on the table and then pushed it with his hand. I calmly got up and scooped them onto a plate and threw them out the kitchen window.  He just watched me and then went into his room.
The rest of the night went smoothly after that. I am hoping I can manage to stay on my toes and keep up the momentum.