Testing my patience

My little boy Caleb has just turned 1 and I swear he is in his terrible 2s already. He can be so sweet and so mean withen 5 mins of each other. He looks at me and puts him 1 little finger on something he shouldnt and just waits for me to react. He is going to be spending alot of time in his bed by himself. I dont wanna raise "one of those kids"...