u/Next-Possibility-484

I am really struggling. I really cannot stand my SD (aged 9). Her dad has her 50/50 with her mum and I just dread the days she is due to be here. I am sat here with dread as it’s our week with her.
I have been with her dad 2 years now and it just seems to be getting worse.
Is there a turning point? How do I switch off from caring so much/ letting what she does annoy me so much?
I’m not sure if it’s because I have come in with new rules and expectations and there are still adjustments being made for it to become liveable. But it’s got to a point where I feel like I can’t even put on a brave face the moment she walks through the door and that’s not fair on all of us anymore.