My child is seriously driving me insane! Between the tantrums, and the hitting, and the throwing,…

My child is seriously driving me insane! Between the tantrums, and the hitting, and the throwing, and the telling me “no” and just flat out being a brat that doesn’t listen... I’m gonna lose it 😫 idk if this is a phase or what but I’m seriously at my breaking point. No kind of punishment works. I’m to the point that I’ve just been sending her to her room all day just to be able to breathe cause she is resting me so badly. I don’t even know what to do anymore. 😩😩😩😩