My 2yo has suddenly decided to behave like one. Lots of NO! And MINE! Planking in the middle of roads. Throwing stuff. Not listening. And today, pushed me hard a few times 
What worked for you in terms of discipline, techniques or even just ways to deal with it that don't involve copious amounts of
? I tried to introduce a 'time out' step, but DS is very stubborn - I spent 50 minutes trying to get him to say sorry to me the other day (he never did). I didn't want to cave in, but I just can't spend that sort of time when I also have a 5 month old at home needing attention too.
Feeling a bit blue after several weeks now of horrid behaviour (I know it's probably normal but it's not fun) and can't help but worry that it's my fault he doesn't listen!