Hating boarding school Help?

So recently I joined a school making a overseas boarder as I live in Hong Kong and my school is England, I really do not like it here the hours are so long as in like 9 hours of school a day which includes homework. I have been here for two terms now and I have just started my thrid. I am miserable and always have been and I really need help because these are the many reasons I wanna leave
Always tired
Too much work
Too long hours
No time to myself
Never not with someone
Have close to no friends
And to top it all of I am severely homesick
I would really like to talk to my parents about this but I really not sure if they will listen or how to talk to them as I’m sure my dad really won’t understand
It’s been like this the past two terms and I thought over time it would go away but I’m still miserable I’m also failing academically and so I don’t want my parents to think I’m quiting after receiving a very bad school report and just don’t know what to say them if someone could tell me what to say that would be very helpful
Please help?