Banging my head against a wall

With only 8 days to go - no I haven't been counting, I did the math when I was trying to talk to Alex about something - I feel like my patience is now strengthened from this whole year, but tired. I can no longer deal with Alex and her bad attitude. She's pissed at her grandma but she calls Pat to tell on me (I feel like a kid) because I said if she can't live up to her end of the bargain (come home from playing at Morgan's and do her study, like she promised) then I wouldn't allow her to play next week after school. Anyway, after calling Pat she comes down stairs and starts working on her art project and I eventually ask her about the phone call and she tells me Pat said I have to help her with Social Studies study for the test tomorrow, so we have dinner, I do that and she doesn't try so I'm like I'm not doing this because she doesn't want me to and she isn't cooperating. When she goes up stairs I go before I finish work to discuss with her what the problem is, we seem to be having a good conversation, she seems to be understanding why I feel upset about her attitude and I said that in my last 6 days of working I don't want it to be like this. That's how I figured how many days I have.
On top of this Alex bullshit I had an email from mum today who told me Rachel isn't doing so well. Which made me cry. And cry. Hopefully it's just stress and she'll get back to 100% once I get home, that's not an egotistical thought either, it's just that I know she misses me a lot and wants me home.
So I'm done. I'm literally done with the bullshit I have dealt with. I almost want to say that I no longer want to have anything to do with Alex, but how do I say that? So of course I won't, I'll deal with it for another 6 working days and then be done and leave. And it sucks because I really like Pat, Matthew and Em and don't want to this last week to be tainted.
I just realised that the Hottest 100 is on Triple J so am listening to that, praying it'll calm me down.
So that's it for me. Oh, I finished my D.C album as well!! So now that's done I can pack!