I'm maxed out like the credit card of a new college graduate

Today Friend One told me to "Have a good day!"  All I could respond was "... Okay"

Life has been really awful lately.  Just before Christmas my grandmother was diagnosed with cancer.  Terminal cancer.  Really fast, really bad, in-your-bones-and-you-just-have-to-wait-three-months-and-you'll-be-dead cancer.  Needless to say, our Christmas was not so fun.  My grandmother's only treatment option, besides waiting around to die, is to do chemotherapy and take a bone marrow shot periodically.  The cost of the treatment (with her insurance) is more money than my parents managed to save for my sister's and my college educations. 
Combined.

On top of that, I've been unemployed for the past month and have been living off of my savings.  Friend Two came back and took our depressingly quiet house and turned it into an orgy.  My sister yelled at me for not waking her up yesterday so I could take her job hunting and is really mad at me.  One of the friends that I have just gotten used to depending on for support has gone AWOL.  I'm already behind in my first week of online class,and our Internet is on the fritz, so I'm worried that it will go away at any moment.  And to put a cherry on the top of my stress sundae, my mouth is covered in cracked and bleeding cold sores that won't go away.

When I came home tonight after putting my grandparents to bed and talking treatment options with my mom, my door was locked.  While I was excavating my purse for my keys, the day's mail fell out from under the crook of my arm.  As if it was some sort of signal, everything began to fall to the floor.  The paper copies of my textbook, my coat, my peanut butter, my new shampoo, my phone.  I was left in a circle of destruction holding my keys.  At that point, I just wanted someone to open the door, to offer some sort of help.

But nobody came and I had to clean up the mess by myself in the dark.

This is what I feel like my life has become.  Everything feels as if it is going to pieces and I'm powerless to stop it.  All I can really do is try to mop up it all afterwords.  And that's all I'm capable of doing - I'm so stressed out, it's ridiculous.  I'm getting so snarky, I'm afraid that I'm going to start actually cussing somebody out, which is not my usual style (too unproductive) at all.

I'm so not ready for anything more to happen right now.  Oh, wait.  I'm applying for a third job (to start at the beginning of the semester, like the others) tomorrow.  Can't wait to see how that goes.