I thought I would just drop a line or two regarding the schooling poll but all my experience is from a New Zealander's perspective but I imagine it crosses over.
A Public school and a Christian/Church based school are vastly different.
What Hanna is describing definitely sounds like a normal public school, I went to one of these so can confirm all of that is pretty much true.
The things I don't agree with are the "bad teaching" as that is very broad and can change from teacher to teacher and the "at least one person hates someone" seems odd to me, sure people might not get along but I never experienced anything like that.
But things can be very different in a Christian school, especially when you have amazing teachers like Lady P who go out of their way to help you with absolutely anything you need help with. Even though I just went to public schools I had so many great teachers that taught me lessons I keep with me to this day and they actually cared about their students just like Lady P does.
I would suggest researching into it more Xonos and maybe going in with your mum for a walk around/orientation to see what it's like, see what you think of it. If there was an option to "You should check it out" I would tick that, more knowledge on the topic from "for and against" sides will help you make an informed decision.