Has your 11 yo daughter started behaving like a teen yet?

i have a sister who just turned 12 and trust me, thats normal. you can ask my sister to shut the door and she will have a burst out melt down. there is drama over everything, shes messy, cranky and moody. ive seen my sisters texts and they are all basically "cool" "ik" "lol" or "wats up." i dont think you have much to worry about unless shes getting into trouble outside the home