Kid Stress

My child has apparently lost his damn mind lately and I am fed up.  I do not know why he has become a smart mouth, defiant, whiny disrespectful kid.  It started around Halloween.  He did not get to do anything because his mouth got him in trouble so we stayed home.  He got mad at something I told him to do and said well then I don't want to do trick or treating...like that was hurting me.  I told him fine he would not be going.  A could of hours later he tried to recant his statement and I told him nope too bad.  I think I wrote about him drawing on my sister's tims and her floor in her room.  He had no TV for a week for that and is still in the process of doing extra chores to pay them off. 
 
His mouth is so out of control.  I do not need to hear little smart azz comments about what he thinks he knows.  He have been in this word 5 yrs and grant it he are smart, I am the parent and adult here.  When I tell him to do something I am not trying to hear NO or whining or him stomping off.  Am I crazy? There is obviously a reason that I am telling you to do something so get to it dude. 
 
Due to his mouth, the TV came OUT of the room last night.  He will get it back when I feel like giving it to him.  I am not about the talking back, I cannot stand to hear kids back talk their parents and I am not going to have it in my house. 
 
I told him to drink his juice at the table and not on the floor in front of the tv. Because he knows better than me he did not listen and ended up spilling orange juice on my carpet.  I was HOT and then his behind was.  Not for spilling juice but for being disobedient.  And I hate that word because he isn't a dog.
 
Whatever I say, he says and does the opposite. And I am tired.  Of course you cant give up on your kid but I am tired.  AND the kicker is that he does not misbehave in school.  I know I need to nip this and soon because I do not want it trickling into his school performance. 
 
He has also been this way with my grandma, sister and uncle.  My uncle has been trying to talk to him about it but he (unc) is too nice and Tyler over talks him and changes the subject. 
 
I am going to keep on keeping on...WOOOOOOOSAAAHHHHHHHH!