I dont think he's bipolar. Sounds more like he's spoiled. And I dont mean that as a negetive mark against you.....I have 3 very spoiled son's who have recently found their little worlds turned upside down as a result! It's working too! You absolutely HAVE to be consistant! There is no room for being too tired to discipline, or letting it slide this once. The first two weeks are HORRIBLE! But after that, they start to get the drift that your serious. I have a 2, a 5, and a 9 year old, all boys. These kids will get rowdy, the 5 year old will get distructive, tell me no, hit at me......It was absolutely intolerable. My husband passed, so I have been raising.....I mean spoiling them....all on my own! I too, thought I had done EVERYTHING. I had done time outs, taking away privilages, early bedtimes, spankings, talks, reasoning, bribery, and pretty much anything else you can think of. The only thing I NEVER did, was be consistant. ITS HARD WORK! Really hard! You may literally get nothing done but chase after them and let them know who is boss the first couple days. But in the past few months, they are polite, they tell me they love me, I enjoy my time with them, in fact, I spend a lot more time with them. The video games and computer got taken away for good, and the tv is on a lot less. We do a lot more active things which helps, and we are all in general, a much happier crew. There are still days of arguing, whinning, etc......today in fact was one. So they got an early bedtime because they must be sleepy or they wouldn't be that crabby, and I needed a break!
Tomorrow, they will be much nicer I'm sure. And that's the beauty of it. We all know what to expect from each other now. They know what their consequences are, as well as why they got them, and I know I can count on them learning their lesson now, and life is much better. Like I said, lots of work to start with, but well worth it in the long run, and once the dust settled, you will realize it is much easier to stay on top of it! Good luck!