S.B.
Three was an extremely trying age with my son. I spent much of the time frustrated with his antics. You mention consistent time outs. When he throws a fit, does his time out time start over? With our son we had to make sure he understood the right way to behave in time out. The timer didn't start until he behaved calm and sat quietly. Using an actual timer, so he could see it being restarted helped quite a bit. The other thing that worked really well, was a behavior chart. We worked on two bahviors at a time. We wold state the goal without using the word "no". Things like "Listen to grownups" and "keep your hands to yourself". On good days he got a sticker, on bad days he lost one (After serving his time out). After he got 14 stickers, he earned a reward. These were non tangible things...like "a family camping trip" or "movie night with the famiy", but you could do what you wanted. For our son, it put a positive spin on negative behaviors. It helped take the "anger" out of it. It was a more positive way of dealing with all the negativity. Having the visual on the refrigerator helped as a constant reminder of expected behaviors.