Everyones hurting so much

I remember how my mum used to be with me, i don't think i'll ever forget. I was so strong, so stubborn, but i was terrified of her. When Sarah yelled my name tonight, i heard that fear in her voice, and i heard the anger in my mums and i wasn't going to let anyone treat my little sister like that. I reminded myself of my dad. Sarah ran to my room when i opened my door, my mum chasing her, me blocking her path, protecting Sarah. When i was Sarah's age, i remember my dad doing the exact same thing for me. I ended up in a huge arguement with my mum tonight; one which i utterly regret already. I love my mum to bits, and i never would have meant to hurt her like this. Sarah told her we wanted to move in with dad, and i totally backed her up. I told her everything. That dad was trying to get the house, and we were going to live with him. That we think she's never in. She spends our child support money on nights out, and comes home at 4 in the morning. That i don't really see her as a parent. If im honest i have no idea about the money, they both lie i know they do.. or at least one of them is lying and i dont have the slightest idea who it is. I don't know who i want to live with, if i could i wouldn't live with either of them. I keep telling my mum it's not about the money, this whole thing with my mum and dad has made me hate money, everything's about money and no one cares about people anymore. I hate it. I don't want her money, i want her time. And i don't get that, not ever recently. But i still shouldn't have said it to her like that, arguements are never the right time to admit things, it all comes out wrong in anger. So, im sorry mum. And i can hear them both crying, just like me. And everyone in my house is hurting so much right now, and i don't know what the right thing is to do.