From some other threads I'm gathering that I am not the only one being driven completely insane by my three year old. So starting a thread for commiseration.

I knew about the terrible twos, which really weren't as bad as I feared. And I heard of threenagers but didn't really appreciate it. How is it that a three year old can bring me to the edge of sanity 100 times a day?? Who else is with me? Parents with older LOs, how long does this last? My child is rather spirited. And opinionated. And incredibly smart and often very sweet and thoughtful, except when she is not and I want to slam my head into a wall.