Any else’s toddler?

Ma

My toddler is really difficult right now. Everything is a fight or leads to a meltdown. She’s not listening and blatantly doing the opposite of what I say “keep the beans in the bowl” then she dumps them everywhere. She just got a baby brother, but I feel like she is getting all of my attention all of the time- negative and positive so I don’t think the acting out is for more attention. Are these the terrible twos? Anyone going through the same thing??