I need some advice. My 5 year old is starting to act out and be really mean to my 9 month old. So far she's screamed in her face multiple times, thrown toys at her, pinned her down on the floor, and burped in her face. There's times I'm scared to go to the bathroom without taking the baby with me. What can I do??? Spankings and timeouts and talking hasn't worked. Idk what's gotten in to her. And she'll say really mean things to me and my husband (her stepdad) like she doesn't wanna live with us anymore and she doesn't love us. Idk what I can do and I'm at wits end.