Well that’s normal for 3 year olds and it’s gets worse at 4! My daughter never responds to any amount of discipline. She goes right back to doing whatever she wants. She doesn’t care. I stopped giving her any iPad time and I try to limit her sugar. You just have to figure out what works and keep changing it up to see what he responds to.

Ignore his bad behavior and reward his good behavior, it might seem a little hard but it's what we have to do with my son because of his ADHD, I ignore the hell out of his bad behavior especially when we are in public, might seem like I'm a bad parent to other people but at the end it pays off🙌.. my son looks for any kind of attention (good & bad). Ignore the bad😊 try it for awhile and if it doesn't work then I'm sure there will be something else you can do😊 good luck mama🙏💕

Positive reinforcement

Unfortunately, it’s most likely just a phase. 3’s are the absolute worst, in my opinion.